In vivo and in vitro studies evaluating the chemopreventive effect of metformin on the aryl hydrocarbon receptor-mediated breast carcinogenesis

Metformin (MET) is a clinically used anti-hyperglycemic agent that shows activities against chemically-induced animal models of cancer. A study from our laboratory showed that MET protectes against 7, 12-dimethylbenz[a]anthracene (DMBA)-induced carcinogenesis in vitro human non-cancerous epithelial breast cells (MCF10A) via activation of the aryl hydrocarbon receptor (AhR). However, it is unclear whether MET can prevent the initiation of breast carcinogenesis in an in vivo rat model of AhR-induced breast carcinogenesis. Therefore, the main aims of this study are to examine the effect of MET on protecting against rat breast carcinogenesis induced by DMBA and to explore whether this effect is medicated through the AhR pathway. In this study, treatment of female rats with DMBA initiated breast carcinogenesis though inhibiting apoptosis and tumor suppressor genes while inducing oxidative DNA damage and cell cycle proliferative markers. This effect was associated with activation of AhR and its downstream target genes; cytochrome P4501A1 (CYP1A1) and CYP1B1. Importantly, MET treatment protected against DMBA-induced breast carcinogenesis by restoring DMBA effects on apoptosis, tumor suppressor genes, DNA damage, and cell proliferation. Mechanistically using in vitro human breast cancer MCF-7 cells, MET inhibited breast cancer stem cells spheroids formation and development by DMBA, which was accompanied by a proportional inhibition in CYP1A1 gene expression. In conclusion, the study reports evidence that MET is an effective chemopreventive therapy for breast cancer by inhibiting the activation of CYP1A1/CYP1B1 pathway in vivo rat model

Proceedings of the CSE 2017 Annual PGR Symposium (CSE-PGSym17)

Welcome to the Proceedings of the second Annual Postgraduate Research Symposium of the School of Computing, Science and Engineering (CSE-PGSym 2017). After the success of the first symposium, the school is delighted to run its second symposium which is being held in The Old Fire Station on 17th March 2017. The symposium is organised by the Salford Innovation Research Centre (SIRC) to provide a forum for the PGR community in the school to share their research work, engage with their peers and staff and stimulate new ideas. In line with SIRC’s strategy, the symposium aims to bring together researchers from the six groups that make up the centre to engage in multidisciplinary discussions and collaborations. It also aims to contribute to the creation of a collaborative environment within the Research Centre and the Groups and share information and explore new ideas. This is also aligned with the University’s ICZ (Industrial Collaboration Zone) programme for creating cultural, physical and virtual environments for collaboration, innovation and learning

Trace elements: critical insights from 15 years of monitoring in the Venice Lagoon catchment basin (Italy)

The study focused on selected trace elements (As, Cd, Cr, Hg, Ni, Pb) monitored in surface waters of the Venice Lagoon catchment basin (North East Italy) over the period 2000-2015. The monitoring was undertaken to verify the achievement of the quality objectives set by the European and national legislations. The available results have been analyzed to evaluate the chemical status of water bodies. The limit of quantification (LOQ) of the applied analytic techniques appears critical for the adequate water monitoring; for some parameters, the percentage of not visible values due to non-satisfactory LOQ was higher in the beginning of the period; the subsequent improvement of LOQ allowed assessing the respect of environmental quality standards (EQSs). The study analyzes time trends in single stations and the differences between detected concentrations in the considered stations. Moreover, maximum concentrations and water flows have been considered to understand the potential correlation. Cumulated frequency curves for the most critical parameters have been built to identify situation of potential overtaking of the EQSs in force. The most polluted sampling stations of the drainage basin for the six trace elements were found in Cuori and Fiumazzo rivers. Although LOQs changed over time, the recorded trends show a quality improvement and a good compliance with respect to EQSs set by European legislation, while considering EQSs set by local special legislation, the objectives are not yet satisfied. Arsenic is ubiquitous; thus, it can be supposed to be originated as a background environmental concentration, while nickel appears of industrial origin according to its point and local presence

Medical genetics in developing countries in the Asia-Pacific region: challenges and opportunities

Advances in genetic and genomic technology changed health-care services rapidly in low and middle income countries (LMICs) in the Asia-Pacific region. While genetic services were initially focused on population-based disease prevention strategies, they have evolved into clinic-based and therapeutics-oriented service. Many LMICs struggled with these noncommunicable diseases and were unprepared for the needs of a clinical genetic service. The emergence of a middle class population, the lack of regulatory oversight, and weak capacity-building in medical genetics expertise and genetic counseling services led to a range of genetic services of variable quality with minimal ethical oversight. Some of the current shortcomings faced include the lack of awareness of cultural values in genetic health care, the variable stages of socioeconomic development and educational background that led to increased demand and abuse of genetics, the role of women in society and the crisis of gender selection, the lack of preventive and care services for genetic and birth defects, the issues of gene ethics in medicine, and the lack of understanding of some religious controversies. These challenges provide opportunities for both developing and developed nations to work together to reduce the inequalities and to ensure a caring, inclusive, ethical, and cost-effective genetic service in the region

Attitudes of cancer patients and their families toward disclosure of cancer diagnosis in Saudi Arabia: a Middle Eastern population example

Ahmad S Alzahrani,1 Abdullah Alqahtani,1 Maher Alhazmi,1 Rehab Gaafar,2 Doaa Bajabir,1 Ibtehaj M Alharbi,3 Ashwaq MF Alharbi,3 Ghufran Kheshaifaty,1 Aamer Alzahrani4 1Mental Health Department, Neuroscience Center, King Abdullah Medical City, Makkah, Saudi Arabia; 2Ministry of Health, Riyadh, Saudi Arabia; 3College of Medicine, Qassim University, Buraydah, Saudi Arabia; 4College of Medicine, Umm Al-Qura University, Mecca, Saudi Arabia Objectives: Particularly in the Middle East, few studies have explored the attitude of cancer patients and their families toward cancer diagnosis disclosure (CDD). This study was conducted to investigate the preference and attitude of a sample of cancer patients and their families in Saudi Arabia toward CDD. Methods: We constructed a questionnaire based on previous studies. The questionnaire assessed preference and attitude toward CDD. Participants were recruited from the King Abdullah Medical City, which has one of the largest cancer centers in Saudi Arabia. Results: Three hundred and four cancer patients and 277 of their family members participated in the study. The patient group preferred CDD more than the family group (82.6% vs 75.3%, P<0.05). This preference is especially more evident toward disclosure of detailed cancer information (status, prognosis, and treatment) (83.6% vs 59.9%, P<0.001). In a binary logistic regression, factors associated with preference toward CDD included having information about cancer (odds ratio [OR] 1.8; 95% confidence interval [CI], 1.15–2.84) and being employed (OR, 1.77; 95% CI, 1–2.82) while being from the patient group was the only factor associated with preference toward detailed cancer information (OR, 3.25; 95% CI, 2.11–5.05). In terms of patient reaction after CDD, “fear” was the attitude expected by the family group more than the patient group (56.3% vs 70.4%, P<0.001) while “acceptance” was the attitude anticipated by the patient group more than the family group (38% vs 15.2%, P<0.001). Conclusion: Patients preferred CDD and disclosure of related information, while their families were more inclined toward scarce disclosure. Family members seem to experience negative attitudes more than the patients themselves. Keywords: oncology, disclosure, family, caregiver, culture, Muslim, perception, preference, communication, bad news, patient-centere

The predictors of poor quality of life in a sample of Saudi women with breast cancer

Anwar E Ahmed,1,2 Abdulrahman G Alharbi,3 Mohannad A Alsadhan,4 Alaa S Almuzaini,5 Hanin S Almuzaini,5 Yosra Z Ali,6 Abdul-Rahman Jazieh6 1King Abdullah International Medical Research Center (KAIMRC), 2College of Public Health and Health Informatics, King Saud bin Abdulaziz University for Health Sciences, 3College of Medicine, Imam Abdulrahman Al Faisal University, Dammam, 4College of Medicine, King Saud University, 5College of Medicine, King Saud bin Abdulaziz University for Health Sciences, 6Department of Oncology, King Abdulaziz Medical City, Riyadh, Saudi Arabia Background: The protocols for treatment, along with many adverse effects, can strongly affect cancer patients’ quality of life (QoL). As there is limited research on the QoL of Saudi Arabian women being treated for breast cancer, the purpose of this study was to identify the predictors of poor QoL in a sample of Saudi women with breast cancer. Methods: A cross-sectional study was conducted on 145 Saudi women with breast cancer who attended the Oncology Outpatient Clinic at King Abdulaziz Medical City, Riyadh for routine follow-up. Sociodemographic and clinical data were collected for each patient, and a Medical Outcome Study Health Survey 36-Item Short Form (SF-36) instrument was used to assess QoL. Results: Of 145 breast cancer patients studied, 42.1% had a family history of cancer and 52.4% were newly diagnosed cancer patients (first-year-after-cancer diagnosis). According to linear regression analyses, cancer patients with metastasis tended to have pain, along with poor physical function, little vitality, and poor general health (a decrease in SF-36 scores of 22.9, 15.0, 19.4, and 16.9, respectively). Regular exercise was a positive predictor of poor general health (an increase in the SF-36 score of 8.2). Patients with first-year-after-cancer diagnoses tended to have poor emotional well-being (a decrease in the SF-36 score of 8.5). Conclusion: In breast cancer patients, regular exercise was a significant positive predictor of better general health. Breast cancer patients with multiple tumors, metastasis, or fever tended to experience significantly poor QoL in several SF-36 domains. Clearly, a routine assessment of QoL in breast cancer patients is important. Keywords: multiple tumors, fever, metastasis, regular exercise, SF-3

Shortening Door-to-Balloon Time: The Use of Ambulance versus Private Vehicle for Patients with ST-Segment Elevation Acute Myocardial Infarction

Abdulrhman Saleh Alghamdi,1,2 Abdullah Alshibani,1,2 Meshary Binhotan,1,2 Meshal Alharbi,1,2 Saleh S Algarni,2,3 Mohammed Musaed Alzahrani,1,2 Abdulmalik Nasser Asiri,1,2 Faisal Faleh Alsulami,1,2 Kamal Ayoub,2,4 Abdullah Alabdali1,2 1Department of Emergency Medical Services, College of Applied Medical Sciences, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; 2King Abdullah International Medical Research Center, Riyadh, Saudi Arabia; 3Department of Respiratory Therapy, College of Applied Medical Sciences, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, 11481, Saudi Arabia; 4Ministry of the National Guard - Health Affairs, Riyadh, Saudi ArabiaCorrespondence: Abdulrhman Saleh Alghamdi, Emergency Medical Services, College of Applied Medical Sciences, Ext. 95186, Mail Code 3129, P.O. Box 3660, Riyadh, 11481, Saudi Arabia, Tel +96611 429 9999, Email [email protected]: Time is critical when dealing with acute myocardial infarction (AMI) patients in the Emergency Department (ED), as 90 min is crucial for overall health. Using non-EMS transportation for critical patients, such as patients with acute myocardial infarction, to a hospital might delay the rapid identification of the underlying medical disease and initiating definitive treatment. We aim to evaluate the association between the mode of transportation and the D2B time in patients presenting at the ED with AMI.Patients and Methods: We conducted a retrospective cohort study with patients who presented at ED with AMI and underwent percutaneous coronary intervention (PCI). The participants were patients with confirmed AMI at the ED of King Abdullah Medical City (KAMC) from January 2019 to December 2019.Results: In total, 162 AMI patients were enrolled in the study and divided based on the method of transportation. Less than half (n=65, 40.1%) were transported with an ambulance and 97 (59.9%) patients with a private car. The door-to-balloon (D2B) time for the ambulance group was 93.6± 38.31 minutes, and the private car group was 93.8± 30.88 minutes.Conclusion: There was no statistical significance when comparing the D2B time between the private car group and the ambulance group (P = 0.1870). Finally, ambulance transport significantly shortened the time to first ED physician contact. However, it was not associated with shortened D2B time when compared to private vehicle transport.Keywords: chest pain, acute myocardial infarction, ambulance, door to balloon, emergency departmen