qPCR detection of DNA in urine samples of leprosy patients using the gene target.

Background: Leprosy, a chronic infectious disease caused by , continues to pose a public health challenge in many parts of the world. Early and accurate diagnosis is crucial for effective treatment and prevention of disabilities associated with the disease. Molecular techniques such as PCR have demonstrated great potential as a diagnostic tool for directly detecting DNA in different clinical samples, providing better sensitivity and specificity than conventional diagnostic techniques.

A comparative study on the detection of Mycobacterium leprae DNA in urine samples of leprosy patients using Rlep-PCR with other conventional samples.

Background: Mycobacterium leprae causes leprosy that is highly stigmatized and chronic infectious skin disease. Only some diagnostic tools are being used for the identification M. leprae in clinical samples, such as bacillary detection, and histopathological tests.

and host immune transcriptomic signatures for reactional states in leprosy.

Background: transcriptomic and human host immune gene expression signatures that demonstrate a plausible association with type I (T1R) and type II reactions (T2R) aid in early diagnosis, prevention of nerve damage and consequent demyelinating neuropathy in leprosy. The aim of the study is to identify and host-associated gene-expression signatures that are associated with reactional states in leprosy.

Methods: The differentially expressed genes from the whole transcriptome of were determined using genome-wide hybridization arrays with RNA extracted from skin biopsies of 20 T1R, 20 T2R and 20 non reactional controls (NR).

Use of mobile technology in preventing leprosy impairments.

Aim: Rapid development in telecommunication sector across the globe has revolutionised communication networks even in rural areas. At a tertiary leprosy referral hospital in Tamil Nadu, India, leprosy treatment was started for a male patient presenting with clinical signs and symptoms suggestive of leprosy. Since the patient was from a remote area, but needed close and continuous monitoring, he was provided with a mobile phone and a 12 h toll free number.

Computer-aided synthesis of dapsone-phytochemical conjugates against dapsone-resistant Mycobacterium leprae.

Leprosy continues to be the belligerent public health hazard for the causation of high disability and eventual morbidity cases with stable prevalence rates, even with treatment by the on-going multidrug therapy (MDT). Today, dapsone (DDS) resistance has led to fear of leprosy in more unfortunate people of certain developing countries. Herein, DDS was chemically conjugated with five phytochemicals independently as dapsone-phytochemical conjugates (DPCs) based on azo-coupling reaction.

Heteroexpression of Mycobacterium leprae hypothetical protein ML0190 provides protection against DNA-alkylating agent methyl methanesulfonate.

Repair of DNA alkylation damage is essential for maintaining genome integrity and Fe(II)/2-oxoglutarate(2OG)-dependent dioxygenase family of enzymes play crucial role in repairing some of the alkylation damages. Alkylation repair protein-B (AlkB) of Escherichia coli belongs to Fe(II)/2OG-dependent dioxygenase family and carries out DNA dealkylation repair. We report here identification of a hypothetical Mycobacterium leprae protein (accession no.

Identification of novel open reading frames in the intergenic regions of Mycobacterium leprae genome and detection of transcript by qRT-PCR.

Mycobacterium leprae is an unculturable obligate pathogen and causative agent for debilitating human disease leprosy. Due to reductive genome evolution M leprae genome harbours large number of pseudogenes and small number of genes (∼1600 genes and ∼1300 pseudogenes). How M leprae remained a successful human parasite with small set of genes remains poorly understood and provided us the impetus to investigate the intergenic regions of M leprae genome for the presence of possible open reading frames (ORFs).

Molecular docking and simulation study for synthesis of alternative dapsone derivative as a newer antileprosy drug in multidrug therapy.

Leprosy (causative, Mycobacterium leprae) continues to be the persisting public health problem with stable incidence rates, owing to the emergence of dapsone resistance that being the principal drug in the ongoing multidrug therapy. Hence, to overcome the drug resistance, structural modification through medicinal chemistry was used to design newer dapsone derivative(s) (DDs), against folic acid biosynthesis pathway. The approach included theoretical modeling, molecular docking, and molecular dynamic (MD) simulation as well as binding free energy estimation for validation of newly designed seven DDs, before synthesis.

Analysis of a novel multiplex polymerase chain reaction assay as a sensitive tool for the diagnosis of indeterminate and tuberculoid forms of leprosy.

Objective/background: Clinical diagnosis of indeterminate and tuberculoid leprosy is often difficult due to limited and confounding signs and symptoms. In the current study, we evaluated the utility of new multiplex polymerase chain reaction (PCR) using Mycobacterium leprae-specific DNA sequences in the pseudogene regions of ML1545, ML2180, and ML2179 for PCR-based diagnosis of indeterminate leprosy (IND) and leprosy cases across the immunological spectrum. The sensitivity was compared with that of RLEP PCR.

Impact of migration on new case detection rates in leprosy in Gudiyatham Taluk, Tamil Nadu, India.

Migration of persons affected by leprosy was hinted at as early as 1929 (Bhaskara Rao 1930). All new cases of leprosy in Isfahan Province (Iran) were found to be migrants (Asilian et al 2005). Chudasama (2007) suspected increase in leprosy cases in Surat district to migration.

Factors affecting functional outcome of surgical correction of claw hand in leprosy.

The objective of this paper is to study the results and the factors that impact the results of claw hand surgery in leprosy. 110 patients who underwent claw hand correction between 2002 and 2006 were followed up and studied. Brand's criteria for objective assessment and a visual analog scale for subjective assessment were used.

Long term results of tibilalis posterior tendon transfer for foot drop in leprosy.

Seventy four patients, who underwent tibialis posterior transfer between 1960 and 1970 at the Schieffelin Leprosy Research & Training Centre, were reviewed more than 10 years follow up. Sixty four patients (86.5%) improved from a high stepping gait to a heel toe gait.

Factors affecting functional outcome of opponens replacement in median nerve paralysis in leprosy.

In this study, the factors affecting functional outcomes of opponens replacement in median nerve paralysis in leprosy, were investigated. Fifty six patients who underwent opponens transfer between 1995 and 2001 were included in the study. The average duration of follow up is 7.

A preliminary study of locognosia in people affected by leprosy.

Locognosia is the ability to localize a sensory stimulus on the body's surface and can be tested by graded filaments (Semmes-Weinstein monofilaments). This point localization of sensation (locognosia) wastested by SW filaments over four quadrants of the pulp of the fingers in ulnar/median and ulnar paralysis in 38 new patients affected by leprosy. The results were compared with standard testing of sensation at selected sites by Semmes Weinstein monofilament.

Effectiveness of social skills training for reduction of self-perceived stigma in leprosy patients in rural India--a preliminary study.

Objectives: To assess the effectiveness of social skills training in leprosy patients to raise self-esteem and reduce self-perceived stigma.

Design: Five leprosy patients were given 10 day-long group-sessions of social skills training over 3 weeks. Training involved: identification of the emotions and concerns of patients when interacting socially; analysis of positive and negative social interactions and non-verbal and verbal skills training.

Effects of environment and education on knowledge and attitude of nursing students towards leprosy.

The objective of this cross-sectional comparative study was to find the effects of environment and education on knowledge and attitude of nursing students towards leprosy. Data were collected, using a pretested questionnaire, from the first year and third year students of a School of Nursing attached to a leprosy specialty hospital and also from a comparable School of Nursing attached to a general hospital. The results showed that trainees acquired more knowledge on leprosy during training in both schools of nursing.

A measurement of the stigma among vitiligo and psoriasis patients in India.

Background And Aim: The aim is to measure and to compare the level of social participation experienced by vitiligo and psoriasis patients in their domestic and social life in an Indian context.

Methods: A cross-sectional comparative study with a sample of 150 cases each of psoriasis and vitiligo, a total of 300 subjects. A detailed clinical assessment of these two conditions, including the extent of lesions on the affected body parts, socioeconomic status and participation levels in social and domestic lives, was done.

Recent trends in new case detection rates in leprosy by age and sex in Gudiyatham Taluk, Tamil Nadu, India.

In the race towards eradication of leprosy, the emphasis has shifted from prevalence to new case detection rates which are proxyfor true incidence rates. There is great need for reliable data on new case detection rates over time, classified by age and sex. In this paper, the trend of age specific and sex specific new cases detection rates, from 2001 to 2009, for the field area of Schieffelin Institute of Health-Research and Leprosy Centre are presented and implications discussed.

Long term sustainability and efficacy of self-care education on knowledge and practice of wound prevention and management among leprosy patients.

In a chronic disease like leprosy, assessment of self-care education of long duration is necessary to find out its effectiveness and to bring out sustainability both in the point of view of the provider and of the recipient. Self-care education was imparted to patients for 8 years in the Katpadi Block as part of 'prevention of impairment and disability' programme from the year 2000 onwards. The patients were provided with knowledge regarding 'inspection' for pre-disposing factors of wound development and about external causes (trauma) or dangerous environments for wound development.

The history of a leprosy sanatorium in India. A literature review.

Objective: Karigiri was set up initially to be a sanatorium with a difference, and the objective of this review is to study whether this had been achieved.

Methods: A broad search of 43 various publications from Karigiri.

Results: Stigma towards leprosy lead to the creation of this sanatorium, and within 20 years of its existence it made a significant contribution to the knowledge and treatment of this disease through research, and provided skilled manpower for both India and other developing countries.