Publications by authors named "Rizwan Taj"

Medical image security is paramount in the digital era but remains a significant challenge. This paper introduces an innovative zero-watermarking methodology tailored for medical imaging, ensuring robust protection without compromising image quality. We utilize Sped-up Robust features for high-precision feature extraction and singular value decomposition (SVD) to embed watermarks into the frequency domain, preserving the original image's integrity.

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The paper addresses the issue of ensuring the authenticity and copyright of medical images in telemedicine applications, with a specific emphasis on watermarking methods. While several systems only concentrate on identifying tampering in medical images, others also provide the capacity to restore the tampered regions upon detection. While several authentication techniques in medical imaging have successfully achieved their goals, previous research underscores a notable deficiency: the resilience of these schemes against unintentional attacks has not been sufficiently examined or emphasized in previous research.

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: The dopaminergic pathways control neural signals that modulate mood and behaviour along and have a vital role in the aetiology of major depression (MDD), schizophrenia (SHZ) and bipolar disorder (BD). Genome-wide association studies (GWAS) have reported several dopaminergic and cognitive pathway genes association with these disorders however, no such comprehensive data was available regarding the Pakistani population.: The present study was conducted to analyse the 11 genetic variants of dopaminergic and cognitive system genes in MDD, SHZ, and BD in the Pakistani population.

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With an increasing incidence of psychiatric disorders worldwide, there is a need for a better understanding of the population-specific contributing risk factors that are associated with common psychiatric conditions. This study aimed to assess the correlation between socioeconomic, environmental and clinical features associated with major depression (MDD n = 479), bipolar disorder (BD n = 222) and schizophrenia (SHZ n = 146), in the Pakistani population. Multinomial logistic regression and Pearson's correlation were applied to assess the association and correlation between demographic, socioeconomic, environmental, and clinical features of MDD, BD and SHZ.

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Aim: Dopamine β-hydroxylase (DBH) is a copper-containing enzyme that has an important role in maintaining the cellular homeostasis between the two neurotransmitters, dopamine (DA) and nor-adrenaline (NA). functional polymorphisms are associated with multiple neuro-psychiatric conditions and are found to alter the DBH protein levels in serum affecting DBH enzymatic activity. The current study was conducted to determine the genetic and serum levels association of rs1611115 functional polymorphism with major depressive disorder (MDD), bipolar disorder (BD) and schizophrenia (SHZ) in the Pakistani population.

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Major depressive disorder (MDD) is characterized as clinical depression, which primarily affects the mood and behaviour of an individual. In the present study butyrylcholinesterase (BChE), a co-regulatory cholinergic neurotransmitter enzyme implicated in several putative neuronal and non-neuronal physiological roles was investigated for its role in MDD. Eighty MDD patients and sixty-one healthy controls were recruited for the study.

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Filicide is the murder of a child by the parent. It is associated with various psychiatric and nonpsychiatric conditions. We herein present a case report of a filicide by an emotionally unstable mother suffering from depressive psychosis.

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Background: The choice of the antipsychotic medication is based upon the risks, benefits and the cost. There has been still a debate that which group of antipsychotics is overall better amongst the two so we planned this study with the objective to compare the efficacy of the 1st & 2nd generation antipsychotics for the treatment of schizophrenia.

Methods: This RCT was conducted at in/out patient department of Psychiatry at a tertiary care hospital of Pakistan over the time period of six months.

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Background: Anxiety disorder, one of the highly disabling, prevalent and common mental disorders, is known to be more prevalent in persons with type 2 diabetes mellitus (T2DM) than the general population, and the comorbid presence of anxiety disorders is known to have an impact on the diabetes outcome and the quality of life. However, the information on the type of anxiety disorder and its prevalence in persons with T2DM is limited.

Aims: To assess the prevalence and correlates of anxiety disorder in people with type 2 diabetes in different countries.

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Objective: To assess the difference between mean sleep (PSQI) scores in the patients with head and neck tumours with and without the psychiatric morbidity; and assess the associated socio-demographic factors.

Study Design: Descriptive cross-sectional study.

Place And Duration Of Study: Pakistan Institute of Medical Sciences (PIMS), Islamabad, from May to November 2017.

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Background: This study was carried out with an objective to find out the frequency of different reasons of non-compliance to treatment in a sample of out door psychiatric patients.

Methods: This study was conducted at Psychiatry department, Pakistan Institute of Medical Sciences, Islamabad, from Aug. 2001 to Jan.

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