Ku Repository :: Browsing by Author "Sariah, Adellah"

Browsing by Author "Sariah, Adellah"

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Acute and chronic effects of betel quid chewing on brain functional connectivity.
(Frontiers in psychiatry, 2020-03-17) Sariah, Adellah
Background: The active alkaloid in Betel quid is arecoline. Consumption of betel quid is associated with both acute effects and longer-term addictive effects. Despite growing evidence that betel quid use is linked with altered brain function and connectivity, the neurobiology of this psychoactive substance in initial acute chewing, and long-term dependence, is not clear. Methods: In this observational study, functional magnetic resonance imaging in a resting-state was performed in 24 male betel quid-dependent chewers and 28 male controls prior to and promptly after betel quid chewing. Network-based statistics were employed to determine significant differences in functional connectivity between brain networks for both acute effects and in long-term betel users versus controls. A support vector machine was employed for pattern classification analysis. Results: Before chewing betel quid, higher functional connectivity in betel quid-dependent chewers than in controls was found between the temporal, parietal and frontal brain regions (right medial orbitofrontal cortex, right lateral orbital frontal cortex, right angular gyrus, bilateral inferior temporal gyrus, superior parietal gyrus, and right medial superior frontal gyrus). In controls, the effect of betel quid chewing was significantly increased functional connectivity between the subcortical regions (caudate, putamen, pallidum, and thalamus), and the visual cortex (superior occipital gyrus and right middle occipital gyrus). Conclusion: These findings show that individuals who chronically use betel quid have higher functional connectivity than controls of the orbitofrontal cortex, and inferior temporal and angular gyri. Acute effects of betel quid are to increase the functional connectivity of some visual cortical areas (which may relate to the acute symptoms) and the basal ganglia and thalamus.
Changes in brain network properties in major depressive disorder following electroconvulsive therapy: a combined static and dynamic functional magnetic resonance imaging study
(Annals of Palliative Medicine, 2022-06-29) Sariah, Adellah
Background: Major depressive disorder (MDD) is a common and intractable mood disorder. Electroconvulsive therapy (ECT) is a common means of brain electrical stimulation for the treatment of MDD, but the neurobiological mechanism of its clinical symptom relief effect is still to be explored. This study aims to explore how ECT plays a role in depression remissions by investigating the changes of static and dynamic brain network characteristics in MDD patients before and after ECT. Methods: Resting-state functional magnetic resonance imaging (fMRI) scans were obtained from nine MDD patients twice before and after a full course of ECT, all of whom responded to ECT as defined by at least a 50% reduction from baseline Hamilton Depression Scale (HAMD) scores. Both static and dynamic characteristics of the functional brain network were compared between the pre- and post-ECT scans for all participants, and the correlations between changes in clinical symptoms and altered network metrics were also investigated. Results: The clustering coefficient and local efficiency in static brain networks were increased significantly, while the global flexibility of dynamic brain networks was decreased significantly after ECT. Several regions of interest (ROIs) that changed significantly at the local level were also identified, which involved regions of the cerebellum, hippocampus as well as frontal and temporal cortices. Although not significant, the decrease of HAMD scores were associated with trends of changed network metrics after ECT. Conclusions: Our results suggest that ECT may alleviate the depressive symptoms of MDD by decreasing the randomness of the brain network as reflected by changes in both static and dynamic network properties and that the temporal gyrus, frontal gyrus, hippocampus, and cerebellar regions may play key roles in such mechanisms. These findings have important implications for our understandings of ECT and depression. However, this study is limited by a relatively small sample size and the results should be confirmed in larger samples
Clinical outcomes and retention among HIV infected adolescents and adults initiated on protease inhibitors antiretroviral therapy regimen in Dar es salaam; A Longitudinal retrospective descriptive study.
(Research Squaire, 2021-01-06) Sariah, Adellah
Background: Globally antiretroviral therapy access has increased and significantly changed HIV morbidity and mortality patterns. In sub-Saharan Africa there are reports of increasing rates of failure to second-line antiretroviral treatment (ART) hence, assessment for clinical outcomes is critical. Objectives: To assess clinical outcomes and retention using programmatic indicators among HIV-infected adolescents and adults receiving second-line ART in Tanzania. Methods: In this longitudinal retrospective cohort study, we enrolled HIV-infected individuals aged 15 years and above who were initiated on second-line ART (Protease Inhibitor based regimen) due to documented failure of first-line ART between July 2012 and September 2015. We evaluated mean change in CD4 cell count, HIV viral load and retention using survival analysis. Results : A total of 1446 participants were enrolled, the mean duration of second-line therapy was 37.0 months± SD 26.50 and the median CD4 cell count at initiation of the second line was 290 cells/mm3. Virologic suppression <50 copies/ml was increasing over time and reached 58% at 36 months. Six months after switching, 80% of patients were retained and thereafter. Predictors of retention were male gender with hazard ratio (HR) 1.04; 95% CI 1.0-1.1 P-value 0.037 and younger age (25 -39 years) with HR 1.1; 95% CI 1.0-1.2 P-value 0.006. Additionally, adherence > 90% increased the likelihood of retention with a strong correlation HR 1.4; 95% CI 1.1-1.7 P-value 0.00. Clinical stage III and IV at switch were less likely to be retained HR 0.6; 95% CI 0.5-0.6 P-value 0.000 and higher CD4 cell count was associated with less retention HR <1; 95 % CI 0.4-0.6 P-value 0.000. Conclusion: There was a low rate of viral suppression (<50copies/ml) 58% 36 months after switch however, more than 87% of participants were retained to care after switch. Predictors of retention were male gender, younger age (25-39 years) and adherence > 90%. Therefore, improving viral suppression after switching to second-line requires further interventions.
Experiences with disclosure of HIV-positive status to the infected child”: Perspectives of healthcare providers in Dar es Salaam, Tanzania
(BMC public health, 2016) Sariah, Adellah
Background: The specific age to which an HIV infected child can be disclosed to is stipulated to begin between ages 4 and 6 years. It has also been documented that before disclosure of HIV positive status to the infected child. Health care providers should consider children’s cognitive-developmental ability. However, observation and situation analysis show that, health care providers still feel uncomfortable disclosing the HIV positive status to the infected child. The aim of the study was to explore healthcare providers’ experiences in disclosure of HIV-positive status to the infected child. Methods: A qualitative study involving 20 health care providers who attend HIV-positive children was conducted in September, 2014 in Dar es Salaam, Tanzania. Participants were selected from ten HIV care and treatment clinics (CTC) by purposive sampling. An interview guide, translated into participants’ national language (Kiswahili) was used during in-depth interviews. Sampling followed the principle of data saturation. The interviews focused on perspectives of health-care providers regarding their experience with paediatric HIV disclosure. Data from in-depth interviews were transcribed into text; data analysis followed qualitative content analysis. Results: The results show how complex the process of disclosure to children living with HIV can be to healthcare providers. Confusion was noted among healthcare providers about their role and responsibility in the process of disclosing to the HIV infected child. This was reported to be largely due to unclear guidelines and lack of standardized training in paediatric HIV disclosure. Furthermore, healthcare providers were concerned about parental hesitancy to disclose early to the child due to lack of disclosure skills and fear of stigma. In order to improve the disclosure process in HIV infected children, healthcare providers recommended further standardized training on paediatric HIV disclosure with more emphasis on practical skills and inclusion of disclosure content that is age appropriate for children with HIV. Discussion: The disclosure process was found to be a complex process. Perspectives regarding disclosure in children infected with HIV varied among healthcare providers in terms of their role in the process, clear national guidelines and appropriate standardized training for paediatric disclosure. Consistent with other studies, healthcare providers reported difficulties during disclosure because parents /guardians largely fear blame, social stigma, child's negative emotional reaction when disclosed to and have concerns about the child being too young and immature to understand the HIV condition. Conclusions: In order to prevent inconsistencies during the disclosure process, it is important to have in place clear guidelines and standardized paediatric HIV disclosure training for healthcare providers. This would help improve their skills in paediatric disclosure, leading to positive health outcomes for children infected with HIV.
A multivariate pattern analysis of resting-state functional MRI data in Naïve and chronic betel quid chewers.
(Brain Imaging and Behavior, 2020) Sariah, Adellah
Betel quid (BQ) is the fourth most commonly consumed psychoactive substance in the world. However, comprehensive functional magnetic resonance imaging (fMRI) studies exploring the neurophysiological mechanism of BQ addiction are lacking. Betel-quid-dependent (BQD) individuals (n = 24) and age-matched healthy controls (HC) (n = 26) underwent fMRI before and after chewing BQ. Multivariate pattern analysis (MVPA) was used to explore the acute effects of BQ-chewing in both groups. A cross-sectional comparison was conducted to explore the chronic effects of BQ-chewing. Regression analysis was used to investigate the relationship between altered circuits of BQD individuals and the severity of BQ addiction. MVPA achieved classification accuracies of up to 90% in both groups for acute BQ-chewing. Suppression of the default-mode network was the most prominent feature. BQD showed more extensive and intensive within- and between-network dysconnectivity of the default, frontal-parietal, and occipital regions associated with high-order brain functions such as self-awareness, inhibitory control, and decision-making. In contrast, the chronic effects of BQ on the brain function were mild, but impaired circuits were predominately located in the default and frontal-parietal networks which might be associated with compulsive drug use. Simultaneously quantifying the effects of both chronic and acute BQ exposure provides a possible neuroimaging-based BQ addiction foci. Results from this study may help us understand the neural mechanisms involved in BQ-chewing and BQ dependence.
Prevalence and factors associated with late antenatal care visit among pregnant women in Lushoto, Tanzania
(Tanzania Journal of Health Research, 2017) Sariah, Adellah; Protas, Joyce
Background: Adequate utilization of antenatal health care services is associated with improved maternal and neonatal health outcomes. The World Health Organization recommends pregnant women to attend antenatal care services as early as in the first trimester. However, many women due to various reasons fail to meet the recommendations. The objective of this study was to determine the prevalence and factors associated with late antenatal booking among pregnant women in Lushoto district of north-eastern Tanzania. Methods: This hospital based cross sectional study involved pregnant women and was conducted in August-September 2015. A standardized questionnaire was used to obtain participants demographic characteristics and obstetrics history. Data analysis was done using (SPSS) and relationship between outcome variables and exposure variable was done using Chi-square test. Multivariate logistic regression was used to measure the association. Results: A total of 240 participants were involved in the study. Out of these, 169 (70.4%) participants booked late for antenatal care (ANC) services. Delayed booking was mainly associated with not being married (AOR=3.08; 95%CI 1.149-8.275; P value=0.025) and unemployment (AOR=4.28; 95% CI 2.11-8.679; p-value=0.000) Conclusion: Late first antenatal clinic visit was high in Lushoto, and was highly associated with unmarried and unemployment status. Therefore, provision of continuous health education and community sensitization on the importance of timely seeking ANC services should be strengthened.
Prevalence and factors associated with neonatal sepsis among neonates in Temeke and Mwananyamala Hospitals in Dar es Salaam, Tanzania
(Tanzania Journal of Health Research, 2016) Protas, Joyce; Semiono, Avelina; Sariah, Adellah
Background: Neonatal sepsis contributes significantly to neonatal mortality. This study was carried out to determine the prevalence and factors associated with neonatal sepsis in Dar es Salaam, Tanzania. Methods: A hospital based cross-sectional study was conducted at Mwananyamala and Temeke hospitals in Dar es Salaam, during August-September, 2015. A standardized questionnaire was used to obtain demographic, obstetrics and clinical information. Diagnosis of neonatal sepsis was done clinically. Relationship between outcome variable and exposure variable was done using Chi square test. Multivariate logistic regression was used to measure association after controlling for confounders. Results: A total of 220 neonates were recruited, 69 (31.4%) had sepsis. The risk factors associated with neonatal sepsis were maternal age of >35 years (AOR=6.7; 95%CI 2.1-20.1; p-value-0.001) and resuscitation at birth (AOR=1.25195%CI1. 22-3.88; p-value=0.025). Conclusion: Neonatal sepsis among neonates in Dar es Salaam is associated with maternal and health services related factors. The findings underscore the importance of routine assessment and close monitoring of neonates. It is therefore recommended to have more skilled health personnel and advanced equipment while providing maternal and new-born health care services.
Reduced Cortical Thickness in the Right Caudal Middle Frontal is associated with Symptom Severity in Betel Quid-Dependent Chewers.
(Frontiers in Psychiatry, 2020) Sariah, Adellah
Background Findings from brain structural imaging studies on betel quid dependence have supported relations between betel quid chewing and alterations in gray matter volume and white matter integrity. However, the effect of betel quid chewing on cortical thickness and the link between cortical thickness and symptom severity remains unascertained. Methods In this observational study, we compared cortical thickness measures from 24 male betel quid-dependent chewers with 27 male healthy controls. Using FreeSufer, we obtained three-dimensional T1-weighted images that were used to compute the thickness of the cerebral cortex throughout the cortical layer. Results Compared to healthy controls, betel quid dependent chewers displayed significant decreased cortical thickness in the precuneus, entorhinal, right paracentral, middle temporal, and caudal middle frontal gyri. Betel quid dependence scale scores negatively correlated (r = -0.604; p = 0.002) with reduced cortical thickness in the right caudal middle frontal of betel quid-dependent chewers. Conclusion The findings provide evidence for cortical thickness abnormality in betel dependent chewers and further propose that the severity of betel quid symptoms may be a critical aspect associated with the cortical alterations. The observed alterations may serve as potential mechanisms to explain why BQ chewing behavior is persistent among individuals with betel quid dependence.
Risk and protective factors for relapse among Individuals with Schizophrenia: A Qualitative Study in Dar es Salaam, Tanzania
(BMC psychiatry, 2014) Sariah, Adellah
Background: Relapse in people with schizophrenia is a major challenge for mental health service providers in Tanzania and other countries. Approximately 10% of people with schizophrenia are re-admitted due to relapse at Muhimbili National Hospital (MNH) Psychiatric Unit each month. Relapse brings about negative effects and it results in a huge burden to patients, their families, the mental health sector and the country’s economy. So far no study has been done to address relapse in Tanzania. The purpose of the study was to explore perspectives on risk and protective factors influencing relapse of people with schizophrenia and their caregivers attending Muhimbili National Hospital Psychiatric Out-patient Department, Dar es Salaam, Tanzania. Methods: A qualitative study was conducted, involving in-depth interviews of seven people with schizophrenia who are out-patients and their seven family caregivers at MNH. Purposive sampling procedure was used to select participants for the study. Audio recorded in-depth interviews in Swahili language were conducted with all study participants. The recorded information was transcribed and analyzed using NVivo 9 computer assisted qualitative data analysis software. Results: Personal risk and protective factors for relapse, environmental risk and protective factors for relapse and suggestions to reduce relapse were the main themes that emerged from this study. People with schizophrenia and their caregivers (all of whom were relatives) perceived non adherence to antipsychotic medication as a leading risk factor of relapse; other risks included poor family support, stressful life events and substance use. Family support, adherence to antipsychotic medication, employment and religion were viewed as protective factors. Participants suggested strengthening mental health psycho-education sessions and community home visits conducted by mental health nurses to help reduce relapse. Other suggestions included strengthening the nurse-patient therapeutic relationship in provision of mental health care. Conclusions: This study calls for improvement in mental health care service delivery to individuals with schizophrenia. Establishing a curricular in mental health nursing that aims to produce competent mental health nurse force would improve nursing practice in mental health care service delivery.
Structural and functional alterations in betel-quid chewers: a systematic review of neuroimaging findings
(Frontiers in psychiatry, 2019) Sariah, Adellah
Background: A number of neuroimaging studies have investigated structural, metabolic, and functional connectivity changes in betel quid (BQ) chewers. We present a systematic review of neuroimaging studies with emphasis on key brain systems affected by BQ chewing to bring a better understanding on the neuro mechanisms involved in BQD. Methods: All BQ neuroimaging studies were identified by searching PubMed, EMBASE, and Google scholar for English articles published until March 2018 using the key words: Betel-quid, resting state, functional MRI, structural MRI, diffusion tensor imaging (DTI), and betel quid dependence basing on the PRISMA criteria. We also sought unpublished studies, and the rest were obtained from reference lists of the retrieved articles. All neuroimaging studies investigating brain structural, and functional alterations related to BQ chewing and BQ dependence were included. Our systematic review registration number is CRD42018092669. Results: A review of 12 studies showed that several systems in the brain of BQ chewers exhibited structural, metabolic, and functional alterations. BQ chewing was associated with alterations in the reward [areas in the midbrain, and prefrontal cortex (PFC)], impulsivity (anterior cingulate cortex, PFC) and cognitive (PFC, the default mode, frontotemporal, frontoparietal, occipital/temporal, occipital/parietal, temporal/limbic networks, hippocampal/hypothalamus, and the cerebellum) systems in the brain. BQ duration and severity of betel quid dependence were associated with majority of alterations in BQ chewers. Conclusion: Betel quid chewing is associated with brain alterations in structure, metabolism and function in the cognitive, reward, and impulsivity circuits which are greatly influenced by duration and severity of betel quid dependence.
Surgical Site Infection among Patients Undergone Orthopaedic Surgery at Muhimbili Orthopaedic Institute, Dar es Salaam, Tanzania.
(East and Central African Journal of Surgery, 2017) Protas, Joyce; Semiono, Avelina; Mika, Elizabeth Z.; Sariah, Adellah
Background: The aim of this study was to determine prevalence and factors associated with surgical site infection at Muhimbili Orthopedic Institute. Method: This was a cross-sectional study conducted at Muhimbili Orthopaedic Institute (MOI) in Dar es Salaam, from August, 2015 to October 2015. Convenience sampling technique was used to recruit postoperative patients for this study. Standardized questionnaires were used to obtain demographic, social, and clinical information from respondents. Determination of the relationship between outcome and exposure variables was done using chi square test. Multivariate logistic regression was used to measure the association after controlling for confounders. Odds ratio corresponding to 95% confidence interval with a p value of ≤ 0.05 was considered significant. Results: Out of 300 study participants 75(25.0%) had surgical site infection. This was highly determined by more than 2 hours length of surgical procedure (AOR= 1.4; 95%CI 1.14-6.69; P value=0.05), none prophylactic use of antibiotics (AOR= 3.4; 95%CI 1.6-7.78; P value=0.03), more than one week stay before surgery (AOR=3.3; 95%CI 2.24-3.34; P value =0.00). Conclusion: The overall prevalence of surgical site infection at Muhimbili Orthopedic Institute was high. This was associated with more than 2 hours length of surgery, lack of prophylaxis use, and pre-operative hospital stay.
Why did I stop? And why did I restart? Perspectives of women lost to follow-up in option B+ HIV care in Dar es Salaam, Tanzania
(BMC public health, 2019) Sariah, Adellah
Background: Despite an increased uptake of option B+ treatment among HIV- positive pregnant and breastfeeding women, retaining these women in care is still a major challenge. Previous studies have identified factors associated with loss to follow-up (LTFU) in HIV care, however, the perspectives from HIV-positive pregnant and breastfeeding women regarding their LTFU in option B+ needs further exploration. We explored reasons for LTFU and motivation to resume treatment among HIV-positive women initiated in option B+ in an Urban setting. Methods: A descriptive qualitative study was conducted at three public care and treatment clinics (CTC) (Buguruni health center, Sinza hospital, and Mbagala Rangitatu health center) in Dar es Salaam, Tanzania between February and May 2017. In-depth interviews were conducted with 30 HIV-positive pregnant and breastfeeding women who were lost to follow up in the option B+ regimen. Analysis of data followed content analysis that was performed using NVivo 10 computer-assisted qualitative data analysis software. Results: Eleven women were lost to follow-up and did not resume Option B+, while 19 had resumed treatment. The study indicated a struggle with long term disease amongst HIV-positive pregnant and breastfeeding women initiated in option B+ treatment. The reported reasons contributing to LTFU among these women appeared in three categories. The contribution of LTFU in the first category namely health-related factors included medication side effects and lack of disease symptoms. The second category highlighted the contribution of psychological factors such as loss of hope, fear of medication side effects and HIV-related stigma. The third category underscored the influence of socio-economic statuses such as financial constraints, lack of partner support, family conflicts, nondisclosure of HIV-positive status, and religious beliefs. Motivators to resume treatment after LTFU included support from health care providers and family members, a desire to protect the unborn child from HIV-infection and a need to maintain a healthy status. Conclusion: The study has highlighted the reasons for LTFU and motivation to resume treatment among women initiated in Option B+. Our results provide further evidence on the need for future interventions to focus on these factors in order to improve retention in life-long treatment.

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