Abdelbaset Buhmeida

Prof. Abdelbaset Buhmeida

orcid

Research Focus & Metrics

Academic Career Length

28Years (1999-Present)

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

Representative Publications

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21 August 2012 in BMC Research Notes
Verified
Journal Article
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EEEramah Ermiah
Eramah Ermiah
FAFathi Abdalla
Fathi Abdalla
ABAbdelbaset Buhmeida
Abdelbaset Buhmeida
ELEntesar Larbesh
Entesar Larbesh
SPSeppo Pyrhönen
Seppo Pyrhönen
YCYrjö Collan
Yrjö Collan
To study the diagnosis delay and its impact on stage of disease among women with breast cancer on Libya. 200 women, aged 22 to 75 years with breast cancer diagnosed during 2008-2009 were interviewed about the period from the first symptoms to the final histological diagnosis of breast cancer. This period (diagnosis time) was categorized into 3 periods: 6 months. If diagnosis time was longer than 3 months, the diagnosis was considered delayed (diagnosis delay). Consultation time was the time taken to visit the general practitioner after the first symptoms. Retrospective preclinical and clinical data were collected on a form (questionnaire) during an interview with each patient and from medical records. The median of diagnosis time was 7.5 months. Only 30.0% of patients were diagnosed within 3 months after symptoms. 14% of patients were diagnosed within 3-6 months and 56% within a period longer than 6 months. A number of factors predicted diagnosis delay: Symptoms were not considered serious in 27% of patients. Alternative therapy (therapy not associated with cancer) was applied in 13.0% of the patients. Fear and shame prevented the visit to the doctor in 10% and 4.5% of patients, respectively. Inappropriate reassurance that the lump was benign was an important reason for prolongation of the diagnosis time. Diagnosis delay was associated with initial breast symptom(s) that did not include a lump (p < 0.0001), with women who did not report monthly self examination (p < 0.0001), with old age (p = 0.004), with illiteracy (p = 0.009), with history of benign fibrocystic disease (p = 0.029) and with women who had used oral contraceptive pills longer than 5 years (p = 0.043). At the time of diagnosis, the clinical stage distribution was as follows: 9.0% stage I, 25.5% stage II, 54.0% stage III and 11.5% stage IV.Diagnosis delay was associated with bigger tumour size (p <0.0001), with positive lymph nodes (N2, N3; p < 0.0001), with high incidence of late clinical stages (p < 0.0001), and with metastatic disease (p < 0.0001). Diagnosis delay is very serious problem in Libya. Diagnosis delay was associated with complex interactions between several factors and with advanced stages. There is a need for improving breast cancer awareness and training of general practitioners to reduce breast cancer mortality by promoting early detection. The treatment guidelines should pay more attention to the early phases of breast cancer. Especially, guidelines for good practices in managing detectable of tumors are necessary.

3 April 2006 in Diagnostic Pathology
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Journal Article
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ABAbdelbaset Buhmeida
Abdelbaset Buhmeida
SPS Pyrhönen
S Pyrhönen
MLM Laato
M Laato
YCY Collan
Y Collan
Prognostic factors in organ confined prostate cancer will reflect survival after surgical radical prostatectomy. Gleason score, tumour volume, surgical margins and Ki-67 index have the most significant prognosticators. Also the origins from the transitional zone, p53 status in cancer tissue, stage, and aneuploidy have shown prognostic significance. Progression-associated features include Gleason score, stage, and capsular invasion, but PSA is also highly significant. Progression can also be predicted with biological markers (E-cadherin, microvessel density, and aneuploidy) with high level of significance. Other prognostic features of clinical or PSA-associated progression include age, IGF-1, p27, and Ki-67. In patients who were treated with radiotherapy the survival was potentially predictable with age, race and p53, but available research on other markers is limited. The most significant published survival-associated prognosticators of prostate cancer with extension outside prostate are microvessel density and total blood PSA. However, survival can potentially be predicted by other markers like androgen receptor, and Ki-67-positive cell fraction. In advanced prostate cancer nuclear morphometry and Gleason score are the most highly significant progression-associated prognosticators. In conclusion, Gleason score, capsular invasion, blood PSA, stage, and aneuploidy are the best markers of progression in organ confined disease. Other biological markers are less important. In advanced disease Gleason score and nuclear morphometry can be used as predictors of progression. Compound prognostic factors based on combinations of single prognosticators, or on gene expression profiles (tested by DNA arrays) are promising, but clinically relevant data is still lacking.

1 March 2014
Verified
Journal Article
Closed access
AMAdnan Merdad
Adnan Merdad
SKSajjad Karim
Sajjad Karim
HSHans-Juergen Schulten
Hans-Juergen Schulten
ADAshraf Dallol
Ashraf Dallol
ABAbdelbaset Buhmeida
Abdelbaset Buhmeida
MAMohammed H Al-Qahtani
Mohammed H Al-Qahtani

1 June 2016 in Analytica Chimica Acta
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Journal Article
Closed access
MSMuhammad Sajid
Muhammad Sajid
Chanbasha BasheerChanbasha Basheer
Chanbasha Basheer
AAAbdulnaser Alsharaa
Abdulnaser Alsharaa
KNKothandaraman Narasimhan
Kothandaraman Narasimhan
ABAbdelbaset Buhmeida
Abdelbaset Buhmeida
MAMahmoud Shaheen Al-Ahwal
Mahmoud Shaheen Al-Ahwal

1 December 2008 in Human Pathology
Verified
Journal Article
Closed access
AEAdam Elzagheid
Adam Elzagheid
EKEija Korkeila
Eija Korkeila
RBRiyad Bendardaf
Riyad Bendardaf
ABAbdelbaset Buhmeida
Abdelbaset Buhmeida
SHSuvi Heikkilä
Suvi Heikkilä
OCOlli Carpén
Olli Carpén

9 December 2009 in Cancer Investigation
Verified
Journal Article
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RBRiyad Bendardaf
Riyad Bendardaf
ABAbdelbaset Buhmeida
Abdelbaset Buhmeida
MHMarja Hilska
Marja Hilska
MLMatti Laato
Matti Laato
SSstina syrjänen
stina syrjänen
SPSeppo Pyrhönen
Seppo Pyrhönen
Extracellular matrix degradation is required for invasion and metastasis formation in colorectal carcinoma (CRC), therefore, we have examined matrix metalloproteinases MMP-9 expression in tumors from patients with CRC. The study comprises of 360 patients who underwent bowel resection for stage II, III, IV tumors. Paraffin-embedded CRC tissue samples were used for immunohistochemical staining. Negative MMP-9 expression levels correlated with longer survival time as evaluated by disease-free survival and disease-specific survival (p =.023, p =.006). In multivariate survival (Cox) analysis, MMP9 was a significant independent predictor of DFS (p =.014), but not of DSS, which was independently predicted by disease recurrence, stage and localization. The detection of MMP-9 expression may be valuable in finding patients who are at high risk of developing disease recurrence.