Diriba Gadisa

Mr. Diriba Gadisa

Ambo University

Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 September 2020 in Diabetes, Metabolic Syndrome and Obesity
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GTGetu Melesie Taye
Getu Melesie Taye
MBMohammed Bule
Mohammed Bule
DGDiriba Gadisa
Diriba Gadisa
FTFrehiwot Teka
Frehiwot Teka
TATeferra Abula
Teferra Abula
Introduction: Diabetes mellitus disorder characterized by increase in serum glucose level as a result of change in fat, protein metabolism, and carbohydrate. The aim of the present study was to investigate the effects of the aqueous and hydroalcoholic leaf extract of Thymus. schimperi on blood glucose levels. Methods: The aqueous and 80% methanol extracts of T. schimperi leaves were prepared. Swiss albino mice of either sex weighing 20– 30 g were selected for the experiments. Mice that were made diabetic were divided into seven groups to study the antihyperglycemic effect of the extracts. Diabetes was induced by single intraperitonial injection of alloxan monohydrate (180 mg/kg body weight). Results: After diabetic mice were treated with an extract of solvent at doses of 250 and 500 mg/kg for 21 days, there were significant decreases in fasting blood glucose when compared to diabetic controls. The observed antidiabetic activity could be associated with the phytochemicals present in this plant extract. The extract of solvent also prevented body weight loss of diabetic when compared to diabetic mice group. It was also observed that the extracts have shown no acute toxicity at a dose of 2 g/kg. Conclusion: The aqueous and 80% methanol extracts of T. schimperi leaves have shown blood glucose level lowering effects in diabetic mice. Hence, the present study might support the traditional use of T. schimperi for diabetes mellitus treatment.

7 August 2021 in BMC Women's Health
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AEAlemseged Workneh Ejerssa
Alemseged Workneh Ejerssa
DGDiriba Gadisa
Diriba Gadisa
TATeferra Abula
Teferra Abula
Background: Urinary tract infection (UTI) is the commonest bacterial infections during pregnancy, leading to significant maternal and prenatal morbidity and mortality.Method: This hospital-based cross-sectional study during November 2017 to January 2018 was aimed to determine hospital-based antibacterial susceptibility patterns of bacterial uropathogens among 200 pregnant women in Eastern Ethiopia. ~ 10–20 ml clean-catch midstream urine samples were collected by the study participants. The well-mixed urine samples standardized to 1 µl have inoculated onto Cystine Lactose Electrolyte-Deficient and MacConkey agar. The inoculum was cultured at 37 °C under aerobic conditions for 18–48 h and examined macroscopically to evaluate the colony appearance and size of colonies. The isolate on the plates with pure growth and colonies ≥ 105 CFU/ml were further subjected to biochemical identification and susceptibility testing according to the standard procedures explained in the Clinical and Laboratory Standards Institute guideline. SPSS version 25 was used for data analysis. Descriptive statistics such as frequency, percentage, and cross-tabulation were used to present the findings in the form of graphs and tables.Results: The response rate for this study was 98.04%. Thirty-one bacteria were isolated among the 200 urine samples processed, which gave the overall UTI prevalence of 15.5%. The majority (90.3%) of the isolates were Gram-negative.Escherichia coli(45.2%) was the most frequent isolated uropathogen which followed byProteusspp. (22.6%),Klebsiella pneumoniae(16.1%),Staphylococcus aureus(9.7%), andPseudomonas aeruginosa(6.5%). Among the isolates, 96.4% of them were susceptible to amikacin and followed by nitrofurantoin (90.3%), and gentamicin (83.9%). However, high rates of resistance to ampicillin (58.1%), amoxicillin-clavulanate (51.6%), and cotrimoxazole (51.6%) were observed. Overall, 16(51.6%) of the bacterial isolates had developed multiple drug resistance to the selected antimicrobials.Conclusion: In general, the overall prevalence of UTI was high, 15.5%. Most of isolated bacterial uropathogens were Gram-negative bacteria, andEscherichia coliwas the most frequent isolate. The majority of the isolates were susceptible to amikacin, nitrofurantoin, and gentamicin. However, a high rate of resistance was observed to ampicillin, amoxicillin-clavulanate, and cotrimoxazole. More than half of the isolated bacteria had multiple drug-resistant features. Therefore, periodic and continuous urine culture for screening and diagnosis is mandatory to reduce the consequence of UTI and multidrug resistance bacteria in pregnancy.

2 March 2020 in Journal of Oncology Pharmacy Practice
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DGDiriba Gadisa
Diriba Gadisa
MAMathewos Assefa
Mathewos Assefa
SWShu-Hua Wang
Shu-Hua Wang
GYGetnet Yimer
Getnet Yimer
Background: Management of patients with breast cancer undergoing chemotherapy is complicated by a very high rate of adverse drug reactions which is even more challenging in developing countries like Ethiopia where the toxicity profile of chemotherapy is lacking. The present study aimed at evaluating the toxicity profile of Doxorubicin-Cyclophosphamide (AC) and Doxorubicin-Cyclophosphamide→Paclitaxel (AC→T) regimens among 146 patients with breast cancer in Ethiopia. Methods: This prospective cohort study, with the median of six months’ follow-up, was conducted from January 1 to September 30, 2017 GC at the only nationwide oncology center, Tikur Anbessa Specialized Hospital (TASH), Addis Ababa, Ethiopia. Seventy-one patients received AC, while 75 received AC-T regimen. The toxicity with the highest grade during any cycle was considered as the toxicity grade for that patient. SPSS version 22 was used for analysis. Results: The overall frequent non-hematological adverse drug reactions reported for both regimens were fatigue 144 (98.7%), dysgeusia 142 (97.3%), skin hyperpigmentation 141 (96.6%), nausea 136 (93.2%), vomiting 129 (88.4%), gastritis 122 (83.6%), peripheral neuropathy 108 (74%), and myalgia/arthralgia 110 (75.3%). Neutropenia 107 (73.3%), leukopenia 102 (69.9%), and anemia 51 (34.9%) were the most frequent overall grade hematological toxicities reported. However, those received AC regimen suffered more from grade 2 and above leukopenia (35.2% vs. 17.3%, P = 0.014), anemia (16.9% vs. 2.7%, P = 0.004), and alkaline phosphatase increment (11.3% vs. 2.7%, P = 0.039) than AC-T regimen. On the contrary, those received AC-T regimen suffered more from severe arthralgia/myalgia (2.8% vs. 2%, P = 0.001), peripheral neuropathy (1.4% vs. 36%, P = 0.000), and gastritis (14.1% vs. 29.3%, P = 0.026) than AC regimen. Pretreatment blood cell counts, having stage IV breast tumor, older age, and lower body surface area were significant predictors of grade 2 to above hematological toxicities. Older age, arthralgia/myalgia, and skin hyperpigmentation occurred during the cohort were significant predictors of grade 2 to above oral mucositis, peripheral neuropathy, and fatigue, respectively. Conclusion: Patients who received the AC regimen suffered more from hematological abnormalities, while those on the AC-T regimen experienced more of non-hematological toxicities. Overall, we report high incidences of AC and AC-T regimens-induced toxicities in Ethiopian women with breast cancer, and they may require prior support based on pretreatment blood counts, age and body surface area, and close follow-up during chemotherapy.

12 December 2019 in Health and Quality of Life Outcomes
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Journal Article
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DGDiriba Gadisa
Diriba Gadisa
EGEsayas Tadesse Gebremariam
Esayas Tadesse Gebremariam
GYGetnet Yimer
Getnet Yimer
Background: Breast cancer is the most common cancer among women and it affects quality of life of those women. So far, the two most frequently used tools for assessing health related quality of life in breast cancer patients, EORTC QLQ-C30 and EORTC QLQ-BR23 modules, were not validated in Ethiopia. Hence, the present study aimed to assess the psychometric properties of the tools among Ethiopian breast cancer patients. Methods: Institutional based longitudinal study was conducted from January 1 to May 1, 2017 GC at only nationwide oncology center, Tikur Anbessa Specialized Hospital (TASH), Addis Ababa, Ethiopia. A total of 146 patients who visited the facility during that period, with no missing quality of life data, were selected for analysis. The psychometric properties of the EORTC QLQ-C30 and EORTC QLQ-BR23 were evaluated in terms of reliability, convergent, divergent, construct and clinical validity using SPSS version 22. Results: Satisfactory internal consistency reliability (Cronbach’s α coefficients > 0.7) was confirmed, except for cognitive function (α = 0.516) of EORTC QLQ-C30 and body image (α = 0.510) of EORTC QLQ-BR23. Multiple-trait scaling analysis demonstrated a good convergent and divergent validity. No scaling errors were observed. Most items in EORTC QLQ-BR23 possessed a weak or no correlation with its own dimension in EORTC QLQ-C30 (r < 0.4) except with some of symptom scales. A statistically significant chemotherapy induced quality of life scores changes (P ≤ 0.05) were observed in all dimensions of both instruments between baseline and the end of first cycle chemotherapy, except for body image (P = 0.985) and sexual enjoyment (P = 0.817) of EORTC QLQ-BR23, indicating clinical validity. Conclusion: Amharic version of the EORTC QLQ-C30 and EORTC QLQ-BR23 modules are valid and adequately reliable tool and can be used for clinical and epidemiological cancer researches to study the health related quality of life (HRQoL) of women with breast cancer in Ethiopia.

21 January 2020 in PLOS ONE
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GMGosaye Mekonen
Gosaye Mekonen
WMWorku Asefa Megersa
Worku Asefa Megersa
DGDiriba Gadisa
Diriba Gadisa
Health‐related quality of life (HRQOL) is used as a measure of treatment outcomes, in addition to seizure control. Hence, the study was aimed to assess HRQOL and its determinants among adult patients with epilepsy (PWE). A hospital-based cross-sectional study was conducted from April 20 to June 27/2019, through patient interviews and patient’s chart review (medication and clinical information). Data were analyzed using SPSS version 20. The psychometric property was done using Cronbach’s alpha test value of >0.7 as accepted internal consistency and Kaiser-Meyer-Olkin (KMO) measure of sample size adequacy value of ≥0.5 as acceptable construct validity, for Afaan Oromo version questionnaire. Multivariate linear logistic regression analysis was done to find predictors for the HRQOL score. Of 121 PWE included in the study, 24.4% had overall poor HRQOL with the overall mean ±SD score of 56.42±10.96. The predictors for low overall HRQOL score were: presence of co-morbidity (B = -5.620, SE = 1.531, p<0.0001, 95% C.I = -8.656 to -2.584), uncontrolled seizure for at least 2 years (B = -4.239, SE = 1.296, p = 0.001, 95% C.I = -6.809 to -1.670), divorced (B = -8.423, SE = 2.241, p<0.0001, 95%C.I = -12.867 to -3.978) relative to married, and no education (B = -8.715, SE = -8.15, SE = 2.604, p = 0.001, 95%C.I = -9.648 to -1.316) relative to who had level of education above tertiary. In addition, uncontrolled seizure (irrespective of time since seizure-free) (B = -10.083, SE = 2.104, p<0.0001, 95%C.I = -14.256 to -5.910), being widowed (B = -9.300, SE = 3.594, p = 0.011, 95%C.I = -16.429–2.170) relative to married and being illiterate/no education (B = -13.004, SE = 3.910, p = 0.001, 95%C.I = -20.760 to -5.248) relative to educational level of tertiary and above were found to be the strongest negative predictors of HRQOL of physical health. Moreover, uncontrolled seizure (irrespective of time since seizure-free) (B = -12.668, SE = 2.019, p<0.0001, 95%C.I = -16.671 to -8.664) and being divorced (B = -10.153, SE = 3.228, p = 0.002, 95%C.I = -16.556 to -3.751) compared to married were strong predictors for low HRQOL score of psychological health. Absence of Poly-pharmacy (B = 9.050, SE = 3.027, P = 0.003, 95%C.I = 3.047 to 15.054), being single (B = -9.551, SE = 2.095, p<0.0001, 95%C.I = -14.419 to -4.683), and divorced (B = -11.022, SE = 3.351, P = 0.001, 95%C.I = -17.668 to -4.376) relative to married were found to be strong predictors for HRQOL score of social health. Moreover, low HRQOL score of environmental health was predicted by rural residence (B = -5.795, SE = 2.101, p = 0.007, 95%C.I = -9.962 to -1.628), co-morbidity (B+ -4.230, SE = 2.125, p = 0.049, 95%C.I = -8.444 to -0.015) & uncontrolled seizure irrespective of time since seizure-free (B = -6.907, SE = 1.945, p = 0.001, 95%C.I = -10.765 to -3.049) and uncontrolled seizure of at least 2 years (B = -4.520, SE = 1.798, p = 0.014, 95%C.I = -8.088 to -0.953). The majority of the study participants had a good overall HRQOL. In general, a low level of HRQOL score was significantly associated with the marital status of single/widowed/divorced, low level of education, low level of monthly income, co-morbidity, uncontrolled seizure, and poly-pharmacy; irrespective of HRQOL domains. Therefore, it is required to improve HRQOL, by avoiding modifiable factors for PWE to achieve the optimum HRQOL.

1 November 2020 in Journal of Experimental Pharmacology
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BGBiruk Mosisa Gudeta
Biruk Mosisa Gudeta
GMGetu Melesie
Getu Melesie
TATeferra Abula
Teferra Abula
DGDiriba Gadisa
Diriba Gadisa
Introduction: Diarrhea is a cause of morbidity and mortality, especially in children. Patients with diarrhea have been suffering from limited treatment options due to poor drug tolerance, side effect, and multi-drug resistance to almost all the current drug treatments. Therefore, it is important to search for a new therapeutic medicine that can effectively prevent the disease and safe. Vernonia amygdalina is an indigenous medicinal plant used traditionally for the treatment of diarrhea in Ethiopia. The aim of this study was therefore to confirm the antidiarrheal activities of 80% methanol leaves extract using mice models. Materials and Methods: The antidiarrheal activities of the 80% methanol leaves extract were investigated using castor oil-induced diarrhea, intestinal motility, and enteropooling models in mice. The negative control received distilled water orally, the test groups received three dose levels (100, 200, and 400 mg/kg) of the plant materials, and the positive control is given 3 mg/kg Loperamide orally. Results: In the castor oil-induced diarrheal model, the extract delayed onset of diarrhea and reduced fecal parameters at all tested doses significantly as compared with the negative control. Results from the charcoal meal test revealed that the extract produced a significant anti-motility effect at all tested doses as compared with the negative control. In the enteropooling test, the extract produced a significant decline in the volume and weight of intestinal contents. The observed antidiarrheal activity could be associated with the phytochemicals present in this plant extract. It was also observed that the extracts have shown no acute toxicity at a dose of 2 g/kg. Conclusion: This study provides the antidiarrheal activity of the crude extract in all three models. Hence, the findings provide scientific support for the traditional use of Vernonia amygdalina leaves as treatment of diarrhea.