Mustafa Jalal

Mustafa Jalal

*This is an algorithmically generated author record based on publicly available information.

Current Organizations / Institutes

The organizations/institutes from the scholar's latest article

Previous Organizations / Institutes

The organizations / institutes from the scholar's other articles in the past ten years


Mustafa Jalal has a total of 46 co-authors. Here are the top co-authors by number of shared publications:


Latest Publications

  • A case report of pancreatic exocrine insufficiency in a patient with Parkinson’s disease: A coincidence or is there more to it than meets the eye?

    by David Edwards, Babu Krishnan, Mustafa Jalal

    Pancreatic exocrine insufficiency (PEI) is an under-diagnosed condition. Untreated PEI can result in developing gastrointestinal symptoms and long-term complications including weight loss, nutrient deficiencies, sarcopenia and osteoporosis. Current best practice recommends testing for PEI in certain disorders including chronic pancreatitis, cystic fibrosis, pancreatic cancer and post-pancreatic surgery. However, there is increasing evidence that PEI is associated with a number of conditions in addition to the aforementioned diseases. These ‘at-risk’ conditions are a heterogeneous group of diseases, for example, diabetes mellitus, people living with human immunodeficiency virus, high alcohol intake, and coeliac disease. The pathophysiology of some of ‘at-risk’ conditions is becoming increasingly recognised; therefore, the list of associated conditions are in evolving process. We present a case of a 60-year-old male with Parkinson’s disease and persistent abdominal pain who was found to have low faecal elastase levels indicative of severe PEI. His past medical history included none of the known risk factors for PEI. After examining the literature, we report a similar pathophysiological process underlying the development of pancreatitis and Parkinson’s disease which is dysfunction of the Unfolded Protein Response. We suggest further research to assess the prevalence of PEI in the population of patients with Parkinson’s disease.


  • Open Access

    Are we missing pancreatic exocrine insufficiency in ‘at-risk’ groups? Prospective assessment of the current practice and yield of faecal elastase testing in patients with diabetes mellitus, HIV and/or high alcohol intake

    by Mustafa Jalal, John S Leeds, Hey-Long Ching, Andrei Oprescu, Ann Tunbridge, Julia Greig, Solomon Tesfaye, Andrew D Hopper

    There is cumulative evidence that pancreatic exocrine insufficiency (PEI) is under-recognised and can occur in patients with ‘at-risk’ conditions. Thus, we aimed to assess the current practice and yield of requesting faecal elastase (FEL-1), an indicator of PEI, in patients with ‘at-risk’ conditions. We prospectively recruited patients attending secondary care clinics with diabetes mellitus (DM), people living with HIV (PLHIV) and inpatients admitted to hospital with high alcohol intake (HAI). All patients underwent testing with FEL-1. Those patients with PEI (FEL-1 <200 μg/g) were contacted and offered a follow-up review in gastroenterology clinic. In total, 188 patients were recruited (HAI, n=78; DM, n=64; and PLHIV, n=46). Previous FEL-1 testing had not been performed in any of the patients. The return rate of samples was 67.9% for patients with HAI, 76.6% for those with DM and 56.5% for those with PLHIV. The presence of PEI was shown in 20.4% of patients with DM, 15.4% of patients with PLHIV and 22.6% in those with HAI. Diarrhoea and bloating were the most reported symptoms in followed-up patients with low FEL-1 (31.8% and 22.7% of patients, respectively). Follow-up computed tomography (CT) scans in those patients with PEI identified chronic pancreatitis changes in 13.6% and pancreatic atrophy in 31.8% of patients. These results suggest that there is a lack of testing for PEI in ‘at-risk’ groups. Our findings also suggest that using FEL-1 to test for PEI in patients with DM, PLHIV and HAI has a significant impact, although further studies are required to validate these findings.


  • What is the clinical significance of low serum amylase? Systematic review of the conditions associated with low serum amylase

    by Mustafa Jalal, Sebastine A Gbadegesin, Nadeem Tehami, Kei Nakajima

    Objective Most studies have assessed the impact of elevated serum amylase levels in clinical practice, but only a few have investigated the significance of low serum amylase. We therefore, aimed to review the literature to understand the conditions associated with low serum amylase and its clinical relevance. Method This systematic review was performed in accordance with the criteria established in the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. The search was conducted on Medline and Embase databases until November 2022. After identifying relevant titles, abstracts were read and data of eligible articles retrieved. The conditions associated with low serum amylase were evaluated. The quality of the studies was assessed using the Newcastle-Ottawa Score. Results Our search strategy identified 19 studies including a total of 15 097 patients for systematic review. All the studies were observational including two studies which used secretin-induced test. The main conditions associated with low serum amylase were diabetes mellitus (n=9), metabolic syndrome (n=3), chronic pancreatitis (CP) (n=3), non-alcoholic fatty liver disease (n=2) and obesity (n=1). Low serum amylase showed a high specificity (94%) with low sensitivity (38.7%–59%) in diagnosing chronic pancreatitis. Conclusion This systematic review revealed a unique insight into the relevance of low serum amylase in clinical practice. Low serum amylase can be a useful adjunct test in the assessment of patients with CP, pancreatic exocrine insufficiency, diabetes mellitus and metabolic syndrome.


  • Chronic atrophic gastritis – An overlooked association with severe vitamin B12 deficiency: A case report and rapid review of literature

    by Mahmoud Abosamra, Adrian C Bateman, Mustafa Jalal

    Current guidelines recommend surveillance for gastric adenocarcinoma in patients with extensive chronic atrophic gastritis (CAG), which is considered a premalignant condition. Although the association between vitamin B12 deficiency and CAG is well described, the indication for endoscopic investigation is only advised in patients with pernicious anaemia. Our case did not have evidence of autoimmune or H. pylori infection but despite this she had CAG. We suggest considering gastroscopy for severe, unexplained vitamin B12 deficiency, particularly in this patient group.


  • Open Access

    Endoscopic removal of common bile duct stones in nonagenarians: a tertiary centre experience

    by Mustafa Jalal, Amaan Khan, Sijjad Ijaz, Mohammed Gariballa, Yasser El-Sherif, Amer Al-Joudeh

    Background/Aims: There are few studies assessed the efficacy and mortality of endoscopic retrograde cholangiopancreatography (ERCP) for the removal of common bile duct (CBD) stones in the elderly aged ≥90 years. We aimed to assess the safety and efficacy of endoscopic removal of CBD stones in nonagenarians.Methods: We retrospectively reviewed ERCP reports for CBD stone removal. The endoscopic and therapeutic outcomes were collected. The length of stay (LOS), the total number of adverse events, and mortality rate were compared between groups.Results: A total of 125 nonagenarians were compared with 1,370 controls (65–89 years old individuals). The mean LOS for nonagenarians was significantly higher than in controls (13.6 days vs. 6.5 days). Completed intended treatment was similar in the nonagenarians and controls (89.8% and 89.5%, respectively). The overall complication rate did not differ between the groups. However, nonagenarians had a higher incidence of post-ERCP pneumonia (3.9%). None of the nonagenarians were readmitted to the hospital within 7 days. Four nonagenarians (3.2%) and 25 (1.8%) controls died within 30 days.Conclusions: Advanced age alone did not affect the decision to perform the procedure. However, prompt diagnosis and treatment of post-ERCP pneumonia in nonagenarians could improve the outcomes and reduce mortality.


  • Open Access

    Recent advances in detecting premalignant pancreatic cysts

    by Mustafa Jalal, Sebastine A. Gbadegesin, Sazgar Ibrahim, Nadeem Tehami

    The Journal of Cancer Metastasis and Treatment is an open access journal focused on cancer metastasis and treatment, including the occurrence, development, progression, metastasis, and treatment of oncologic disease. It covers basic, translational and clinical research related to cancer cell biology, genomics, precision medicine, oncology internal medicine, radiotherapy and radiology, obstetrics and gynecology, pediatrics, surgery, hematology, neurooncology, etc.


  • Open Access

    Does reverse mentoring work in the NHS: a feasibility study of clinicians in practice

    by Suneil A Raju, Hey-Long Ching, Mustafa Jalal, Michelle S Lau, Anupam Rej, F W David Tai, Gloria Tun, Andrew D Hopper, Mark E McAlindon, Reena Sidhu, et al.

    Objective To assess the risks and benefits of reverse mentoring of consultants by junior doctors. Design A feasibility study divided into two phases: first a semistructured interview where performance of participating consultants was assessed by junior doctors and then a second phase allowing for feedback to be given on a one-to-one basis. Data collected through questionnaires with free text questions and Likert scores. Setting Tertiary teaching hospital in the UK. Participants Six junior doctors (66.6% male, age range 31–40 years) and five consultants (80% male, age range 35–65 years and consultants for 5–20 years). Intervention Reverse mentoring session. Main outcome measure The concerns and/or benefits of the process of reverse mentoring. Confidence was assessed in 7 domains: clinical practice, approach to juniors, approachability, use of technology, time management, strengths and areas for improvement using Likert scales giving a total out of 35. Results The most common concerns cited were overcoming the hierarchical difference and a selection bias in both mentors and mentees. However, no participant experienced this hierarchical difference through the reverse mentoring process and no relationships were negatively affected. Mentors became more confident in feeding back to seniors (23 vs 29 out of 35, p=0.04) most evident in clinical practice and areas to improve (3 vs 4 out of 5, p=0.041 and 3 vs 5 out of 5, p=0.041, respectively). Conclusion We present the first study of reverse mentoring in an NHS clinical setting. Initial concerns with regard to damaged relationships and hierarchical gradients were not experienced and all participants perceived that they benefited from the process. Reverse mentoring can play a role in engaging and training future leaders at junior stages and provide a means for consultants to receive valuable feedback from junior colleagues.


  • Open Access

    Yield of testing for micronutrient deficiencies associated with pancreatic exocrine insufficiency in a clinical setting: An observational study

    by Mustafa Jalal, Jennifer Anne Campbell, Solomon Tesfaye, Ahmed Al-Mukhtar, Andrew Derek Hopper

    Pancreatic exocrine insufficiency (PEI) can be difficult to diagnose and causes maldigestion symptoms and malabsorption. There has been a number of studies that have identified PEI associated micronutrient deficiencies (PEI-MD), however there is variation in both the frequency and type of PEI-MD reported, with the majority of studies including patients with PEI due to chronic pancreatitis (CP) or CP without PEI. There is a paucity of information regarding the prevalence of PEI-MD in patients with PEI without CP and the yield of testing for PEI-MD in a clinical setting in patients with suspected benign pancreatic diseases. To prospectively assess the yield and type of PEI–MD in patients with and without PEI secondary to benign pancreatic disease. Patients investigated for maldigestion symptoms with Faecal Elastase-1 (FEL-1) and suspected or proven benign pancreatic disease were prospectively identified. At the time of FEL-1 testing, serum samples were taken for micronutrients identified by previous studies as PEI-MD: prealbumin, retinol binding protein, copper, zinc, selenium, magnesium and later in the study lipid adjusted vitamin E. FEL-1 was recorded, with a result < 200 µg/g considered diagnostic of PEI. Patients underwent computed tomography (CT) imaging when there was a clinical suspicion of CP, a new diagnosis of PEI recurrent, pancreatic type pain (epigastric abdominal pain radiating to back with or without previous acute pancreatitis attacks) or weight loss. After exclusions, 112 patients were recruited that underwent testing for FEL-1 and PEI-MD. PEI was identified in 41/112 (36.6%) patients and a pancreatic CT was performed in 82 patients. Overall a PEI-MD was identified in 21/112 (18.8%) patients. The yield of PEI-MD was 17/41 (41.5%) if PEI was present which was significantly higher than those without 4/71 (5.6%) (P = 0.0001). The yield of PEI–MD was significantly higher when PEI and CP were seen together 13/22 (59.1%) compared to CP without PEI and PEI without CP (P < 0.03). Individual micronutrient assessment showed a more frequent occurrence of prealbumin 8/41 (19.5%), selenium 6/41 (14.6%) and magnesium 5/41 (12.2%) deficiency when PEI was present (< 0.02). The accuracy of using the significant micronutrients identified in our cohort as a predictor of PEI showed a positive predictive value of 80%-85.7% [95% confidence interval (CI): 38%-100%] and a low sensitivity of 9.8%-19.5% [95% CI: 3.3%-34.9%]. Testing for PEI-MD in patients with suspected pancreatic disease has a high yield, specifically when PEI and CP are found together. PEI-MD testing should include selenium, magnesium and prealbumin.


  • Open Access

    Computed Tomographic Sarcopenia in Pancreatic Cancer: Further Utilization to Plan Patient Management

    by Mustafa Jalal, Jennifer A. Campbell, Jonathan Wadsley, Andrew D. Hopper

    Purpose: The presence of a sarcopenia adversely affects the prognosis of patients with pancreatic cancer. There is an emerging role for using computed tomography (CT) to calculate skeletal muscle index (SMI) and the presence of sarcopenia. The aim of this study was to assess if detecting ‘computed tomographic sarcopenia’ is feasible and can contribute to the management of patients with locally advanced pancreatic cancer (LAPC). Methods: Patients diagnosed with LAPC referred for endoscopic ultrasound-guided biopsy (EUS-B) by our regional cancer network were identified. Age, body mass index (BMI), and Eastern Cooperative Oncology Group performance status (ECOG-PS) were noted. CT images were analysed for SMI and the presence of sarcopenia. Decision outcomes on receiving chemotherapy or not were collected from the regional oncology database. Results: In total, 51/204 (25%) patients with LAPC who underwent EUS-B were not given chemotherapy and received best supportive care (BSC) only. The prevalence of sarcopenia (p = 0.0003), age ≥ 75 years old (p = 0.03), and ECOG-PS 2–3 (p = 0.01) were significantly higher in the patients receiving BSC only. Logistic regression analysis demonstrated that SMI was the only independent associated factor identifying patients with LAPC who were treated with BSC only and not chemotherapy after adjusting for age and ECOG-PS. Conclusion: Our study has shown that computed tomographic skeletal muscle analysis at the time of a diagnostic CT for patients with pancreatic cancer is feasible and can detect sarcopenia and malnourished patients who are much less likely to take up chemotherapy. These patients could be triaged to oncology assessment prior to EUS-B to avoid unnecessary investigations.


  • Open Access

    Digital Detection of Sarcopenia in Pancreatic Cancer: Additional Utilization to Plan Patient Management

    by Mustafa Jalal, Jennifer A Campbell, Jonathan Wadsley, Andrew D Hopper

    Purpose: The presence of a sarcopenia adversely affects the prognosis of patients with pancreatic cancer. There is an emerging role for using computed tomography (CT) to calculate skeletal muscle index (SMI) and the presence of sarcopenia. The aim of this study was to assess if detecting ‘digital sarcopenia’ is feasible and can contribute to the management of patients with locally advanced pancreatic cancer (LAPC).Methods: Patients diagnosed with LAPC referred for endoscopic ultrasound guided biopsy (EUS-B) by our regional cancer network were identified. Age, body mass index (BMI), and Eastern Cooperative Oncology Group performance status (ECOG-PS) was noted. CT images were analysed for SMI and the presence of sarcopenia. Decision outcomes on receiving chemotherapy or not were collected from the regional oncology database. Results: In total 51/204 (25%) patients with LAPC who underwent EUS-B were not given chemotherapy and received BSC only. The prevalence of sarcopenia (p=0.0003), age ≥ 75 years old (p=0.03) and ECOG-PS 2-3 (p=0.01) were significantly higher in the patents receiving BSC only. Logistic regression analysis demonstrated that SMI was the only independent associated factor identifying patients with LAPC who were treated with BSC only and not chemotherapy after adjusting for age and ECOG-PS. Conclusion: Our study has shown that digital skeletal muscle analysis at the time of a diagnostic CT for patients with pancreatic cancer is feasible and can detect sarcopenia and malnourished patients who are much less likely to take up chemotherapy. These patients could be triaged to oncology assessment prior to EUS-B to avoid unnecessary investigations.