Imperial College London

DrSairaHameed

Faculty of MedicineDepartment of Metabolism, Digestion and Reproduction

Honorary Clinical Senior Lecturer
 
 
 
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s.hameed

 
 
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Location

 

Commonwealth BuildingHammersmith Campus

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Summary

 

Publications

Publication Type
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13 results found

Hameed S, Salem V, Alessimii H, Scholtz S, Dar O, Miras AD, Meeran K, Bloom SR, Ahmed AR, Purkayastha S, Chahal H, Tan Tet al., 2020, Imperial Satiety Protocol: A new non-surgical weight-loss programme, delivered in a health care setting, produces improved clinical outcomes for people with obesity, Diabetes, Obesity and Metabolism: a journal of pharmacology and therapeutics, Vol: 23, Pages: 270-275, ISSN: 1462-8902

‘Imperial Satiety Protocol’ (I-SatPro) is a new multifaceted approach to weight loss for people with obesity (PwO), encompassing dietary advice, time-restricted eating, physical activity and coaching to support behaviour change. Participants (n = 84) attended fortnightly I-SatPro group sessions for 30 weeks, with 70% of participants completing. On completion at 30 weeks, the mean weight loss was 15.2 ± 1.1 kg (13.2 ± 0.8% from baseline, P < .0001), which was maintained to 52 weeks (16.6 ± 1.5 kg, 14.1 ± 1.2%, P < .0001). Weight loss was not associated with reduced energy expenditure. In participants with type 2 diabetes and pre-diabetes (n = 16), glycated haemoglobin fell from 50 to 43 mmol/mol (P < .01). Systolic blood pressure fell by 12 mmHg (P < .0001). Triglycerides fell by 0.37 mmol/L (P < .01) and high-density lipoprotein rose by 0.08 mmol/L (P < .01). Short Form-36 (SF-36) functioning and wellbeing scores increased in all domains post I-SatPro intervention. For selected PwO, I-SatPro delivers clinically meaningful weight loss, and the potential for long-term health and wellbeing improvements.

Journal article

Hartley O, Hameed S, Reddy M, Tharakan G, Salem Vet al., 2020, An audit of the management of hyperosmolar diabetic emergencies on an acute medical unit, Publisher: WILEY, Pages: 71-71, ISSN: 0742-3071

Conference paper

Smith C, Hameed S, Rose GE, Wernig Fet al., 2019, A 61 year old man with pancreatitis, pituitary dysfunction, and painful exophthalmos, BMJ-BRITISH MEDICAL JOURNAL, Vol: 364, ISSN: 1756-1833

Journal article

Hameed S, Salem V, Tan T, Collins A, Shah K, Scholtz S, Ahmed A, Chahal Het al., 2018, Beyond weight loss: establishing a postbariatric surgery patient support group - what do patients want?, Journal of Obesity, Vol: 2018, Pages: 1-7, ISSN: 2090-0708

Purpose: There are limited resources for long-term specialist follow-up after bariatric surgery. In selected centres, patients can access a postoperative support group, but there is no clear evidence to guide their delivery. Materials and Methods: A retrospective study of bariatric surgery patients (n = 152) who had been discharged from specialist follow-up (mean time since surgery 5.5 years), covering weight history, physical and psychosocial comorbidities, and the need for a postoperative bariatric support group. Results: Fifty-eight percent wanted a postbariatric surgery patient support group. This was not associated with operation type or the amount of weight lost or regained. However, those who wanted a support group were significantly more likely to be struggling to keep the weight off, to be unhappy with the way they look, or to be experiencing difficulties returning to work.Conclusions: These data point to an unmet patient requirement for a postoperative support group that is independent of weight loss success. More research is required to ascertain how such a group should be delivered, but our data would suggest that supporting patients with weight loss maintenance, body image, and return to work is an important part of postoperative care, and these needs extend well beyond the immediate period of specialist follow-up.

Journal article

Hameed S, Patterson M, Dhillo W, Rahman S, Ma Y, Holton C, Gogakos A, Yeo G, Lam B, Polex-Wolf J, Fenske W, Bell J, Anastasovska J, Samarut J, Bloom S, Bassett J, Williams G, Gardiner JVet al., 2017, Thyroid hormone receptor beta in the ventromedial hypothalamus is essential for the physiological regulation of food intake and body weight, Cell Reports, Vol: 19, Pages: 2202-2209, ISSN: 2211-1247

The obesity epidemic is a significant global health issue. Improved understanding of the mechanisms that regulate appetite and body weight will provide the rationale for the design of anti-obesity therapies. Thyroid hormones play a key role in metabolic homeostasis through their interaction with thyroid hormone receptors (TRs), which function as ligand-inducible transcription factors. The TR-beta isoform (TRβ) is expressed in the ventromedial hypothalamus (VMH), a brain area important for control of energy homeostasis. Here, we report that selective knockdown of TRβ in the VMH of adult mice results in severe obesity due to hyperphagia and reduced energy expenditure. The observed increase in body weight is of a similar magnitude to murine models of the most extreme forms of monogenic obesity. These data identify TRβ in the VMH as a major physiological regulator of food intake and energy homeostasis.

Journal article

Sam AH, Hameed S, Harris J, Meeran Ket al., 2016, Validity of very short answer versus single best answer questions for undergraduate assessment, BMC Medical Education, Vol: 16, ISSN: 1472-6920

BackgroundSingle Best Answer (SBA) questions are widely used in undergraduate and postgraduate medical examinations. Selection of the correct answer in SBA questions may be subject to cueing and therefore might not test the student’s knowledge. In contrast to this artificial construct, doctors are ultimately required to perform in a real-life setting that does not offer a list of choices. This professional competence can be tested using Short Answer Questions (SAQs), where the student writes the correct answer without prompting from the question. However, SAQs cannot easily be machine marked and are therefore not feasible as an instrument for testing a representative sample of the curriculum for a large number of candidates. We hypothesised that a novel assessment instrument consisting of very short answer (VSA) questions is a superior test of knowledge than assessment by SBA.MethodsWe conducted a prospective pilot study on one cohort of 266 medical students sitting a formative examination. All students were assessed by both a novel assessment instrument consisting of VSAs and by SBA questions. Both instruments tested the same knowledge base. Using the filter function of Microsoft Excel, the range of answers provided for each VSA question was reviewed and correct answers accepted in less than two minutes. Examination results were compared between the two methods of assessment.ResultsStudents scored more highly in all fifteen SBA questions than in the VSA question format, despite both examinations requiring the same knowledge base.ConclusionsValid assessment of undergraduate and postgraduate knowledge can be improved by the use of VSA questions. Such an approach will test nascent physician ability rather than ability to pass exams.

Journal article

Hameed S, Martin N, Singh P, Mehta A, Jones B, Meeran K, Roncaroli Fet al., 2012, A somatotroph pituitary adenoma that expresses estrogen receptors, Fourteenth Clinicopathological Conference on Pituitary Disease

Conference paper

Hameed S, Jayasena CN, Dhillo WS, 2011, Kisspeptin and fertility, JOURNAL OF ENDOCRINOLOGY, Vol: 208, Pages: 97-105, ISSN: 0022-0795

Journal article

Hameed S, Dhillo WS, 2011, Weight regulation: physiology and pathophysiology, Oxford Textbook of Endocrinology and Diabetes, Editors: Wass, Stewart, Oxford, UK, Publisher: Oxford University Press, Pages: 1652-1658

Book chapter

Hameed S, Dhillo WS, 2010, Biology of Kisspeptins, KALLMANN SYNDROME AND HYPOGONADOTROPIC HYPOGONADISM, Vol: 39, Pages: 25-36, ISSN: 0301-3073

Journal article

Gardiner JV, Bataveljic A, Patel NA, Bewick GA, Roy D, Campbell D, Greenwood HC, Murphy KG, Hameed S, Jethwa PH, Ebling FJP, Vickers SP, Cheetham S, Ghatei MA, Bloom SR, Dhillo WSet al., 2009, Prokineticin 2 Is a Hypothalamic Neuropeptide That Potently Inhibits Food Intake, Diabetes, Vol: 59, Pages: 397-406, ISSN: 0012-1797

OBJECTIVE Prokineticin 2 (PK2) is a hypothalamic neuropeptide expressed in central nervous system areas known to be involved in food intake. We therefore hypothesized that PK2 plays a role in energy homeostasis.RESEARCH DESIGN AND METHODS We investigated the effect of nutritional status on hypothalamic PK2 expression and effects of PK2 on the regulation of food intake by intracerebroventricular (ICV) injection of PK2 and anti-PK2 antibody. Subsequently, we investigated the potential mechanism of action by determining sites of neuronal activation after ICV injection of PK2, the hypothalamic site of action of PK2, and interaction between PK2 and other hypothalamic neuropeptides regulating energy homeostasis. To investigate PK2's potential as a therapeutic target, we investigated the effect of chronic administration in lean and obese mice.RESULTS Hypothalamic PK2 expression was reduced by fasting. ICV administration of PK2 to rats potently inhibited food intake, whereas anti-PK2 antibody increased food intake, suggesting that PK2 is an anorectic neuropeptide. ICV administration of PK2 increased c-fos expression in proopiomelanocortin neurons of the arcuate nucleus (ARC) of the hypothalamus. In keeping with this, PK2 administration into the ARC reduced food intake and PK2 increased the release of α-melanocyte–stimulating hormone (α-MSH) from ex vivo hypothalamic explants. In addition, ICV coadministration of the α-MSH antagonist agouti-related peptide blocked the anorexigenic effects of PK2. Chronic peripheral administration of PK2 reduced food and body weight in lean and obese mice.CONCLUSIONS This is the first report showing that PK2 has a role in appetite regulation and its anorectic effect is mediated partly via the melanocortin system.

Journal article

Hameed S, Dhillo WS, Bloom SR, 2009, Gut hormones and appetite control, ORAL DISEASES, Vol: 15, Pages: 18-26, ISSN: 1354-523X

Journal article

Hameed S, Dhillo WS, Patterson M, Bloom SR, Bassett JHDB, Williams GR, Gardiner JVet al., 2009, The central regulation of food intake and energy expenditure by thyroid hormones, Publisher: Hot Thyroidology

Working paper

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