1.Comparative Evaluation of Several Gene Targets for Designing a Multiplex-PCR for an Early Diagnosis of Extrapulmonary Tuberculosis.
Ankush RAJ ; Netrapal SINGH ; Krishna B GUPTA ; Dhruva CHAUDHARY ; Aparna YADAV ; Anil CHAUDHARY ; Kshitij AGARWAL ; Mandira VARMA-BASIL ; Rajendra PRASAD ; Gopal K KHULLER ; Promod K MEHTA
Yonsei Medical Journal 2016;57(1):88-96
PURPOSE: Diagnosis of extrapulmonary tuberculosis (EPTB) poses serious challenges. A careful selection of appropriate gene targets is essential for designing a multiplex-polymerase chain reaction (M-PCR) assay. MATERIALS AND METHODS: We compared several gene targets of Mycobacterium tuberculosis, including IS6110, devR, and genes encoding MPB-64 (mpb64), 38kDa (pstS1), 65kDa (hsp65), 30kDa (fbpB), ESAT-6 (esat6), and CFP-10 (cfp10) proteins, using PCR assays on 105 EPTB specimens. From these data, we chose the two best gene targets to design an M-PCR. RESULTS: Among all gene targets tested, mpb64 showed the highest sensitivity (84% in confirmed cases and 77.5% in clinically suspected cases), followed by IS6110, hsp65, 38kDa, 30kDa, esat6, cfp10, and devR. We used mpb64+IS6110 for designing an M-PCR assay. Our M-PCR assay demonstrated a high sensitivity of 96% in confirmed EPTB cases and 88.75% in clinically suspected EPTB cases with a high specificity of 100%, taking clinical diagnosis as the gold standard. CONCLUSION: These M-PCR results along with the clinical findings may facilitate an early diagnosis of EPTB patients and clinical management of disease.
Bacteriological Techniques/methods
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DNA Transposable Elements/genetics
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DNA, Bacterial/analysis/genetics
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Early Diagnosis
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Female
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Gene Amplification
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Humans
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Male
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Multiplex Polymerase Chain Reaction/*methods
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Mycobacterium tuberculosis/genetics/*isolation & purification
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Polymerase Chain Reaction/*methods/standards
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Sensitivity and Specificity
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Tuberculosis/*diagnosis
2.Irreducible Atlanto-Axial Dislocation in Neglected Odontoid Fracture Treated with Single Stage Anterior Release and Posterior Instrumented Fusion.
Rishi Anil AGGARWAL ; Ashok Keshav RATHOD ; Kshitij Subhash CHAUDHARY
Asian Spine Journal 2016;10(2):349-354
It is a well-know fact that type 2 odontoid fractures frequently go into nonunion. If left untreated, patients may develop irreducible atlantoaxial dislocation (AAD). We describe the surgical management of two patients with neglected odontoid fractures and irreducible AAD treated with single stage anterior release followed by posterior instrumented fusion. Both patients presented with history of neglected trauma and progressive myelopathy. Traction under anesthesia failed to achieve reduction of AAD. Anterior release was done by trans-oral approach in one patient and retrophayngeal approach in the other. Posterior fixation was performed with transarticular screws in both the patients. Both patients had full neurological recovery and demonstrated fusion at follow-up. Anterior release followed by posterior instrumented correction may be an effective alternative to the traditional means of treating irreducible dislocations associated with neglected odontoid fractures.
Anesthesia
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Atlanto-Axial Joint
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Dislocations*
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Follow-Up Studies
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Humans
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Odontoid Process
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Spinal Cord Diseases
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Traction
3.Prophylactic and Therapeutic Potential of Asp f1 Epitopes in Naive and Sensitized BALB/c Mice.
Neelkamal CHAUDHARY ; Lakshna MAHAJAN ; Taruna MADAN ; Anil KUMAR ; Gajendra Pratap Singh RAGHAVA ; Seturam Bandacharya KATTI ; Wahajul HAQ ; Puranam Usha SARMA
Immune Network 2009;9(5):179-191
BACKGROUND: The present study examines a hypothesis that short allergen-derived peptides may shift an Aspergillus fumigatus (Afu-) specific TH2 response towards a protective TH1. Five overlapping peptides (P1-P5) derived from Asp f1, a major allergen/antigen of Afu, were evaluated for prophylactic or therapeutic efficacy in BALB/c mice. METHODS: To evaluate the prophylactic efficacy, peptides were intranasally administered to naive mice and challenged with Afu-allergens/antigens. For evaluation of therapeutic efficacy, the mice were sensitized with Afu-allergens/antigens followed by intranasal administration of peptides. The groups were compared for the levels of Afu-specific antibodies in sera and splenic cytokines evaluated by ELISA. Eosinophil peroxidase activity was examined in the lung cell suspensions and lung inflammation was assessed by histopathogy. RESULTS: Peptides P1-, P2- and P3 decreased Afu-specific IgE (84.5~98.9%) and IgG antibodies (45.7~71.6%) in comparison with Afu-sensitized mice prophylactically. P1- and P2-treated ABPA mice showed decline in Afu-specific IgE (76.4~88%) and IgG antibodies (15~54%). Increased IgG2a/IgG1 and IFN-gamma/IL-4 ratios were observed. P1-P3 prophylactically and P1 therapeutically decreased IL-5 levels and eosinophil peroxidase activity. P1 decreased inflammatory cells' infiltration in lung tissue comparable to non-challenged control. CONCLUSION: Asp f1-derived peptide P1, prophylactically and therapeutically administered to Balb/c mice, is effective in regulating allergic response to allergens/antigens of Afu, and may be explored for immunotherapy of allergic aspergillosis in humans.
Administration, Intranasal
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Animals
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Antibodies
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Aspergillosis
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Aspergillosis, Allergic Bronchopulmonary
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Aspergillus fumigatus
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Cytokines
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Enzyme-Linked Immunosorbent Assay
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Eosinophil Peroxidase
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Eosinophils
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Epitopes
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Humans
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Immunoglobulin E
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Immunoglobulin G
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Immunotherapy
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Interleukin-5
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Lung
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Mice
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Peptides
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Pneumonia
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Suspensions
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Viperidae
4.Reducing shoulder dislocation without anaesthesia or assistant: Validation of a new reduction manoeuvre.
Rashid ANJUM ; Subodh PATHAK ; Atul Rai SHARMA ; Jatin AGGARWAL ; Aryan SHARMA ; Vineet PRUTHI ; Anil Kumar CHAUDHARY
Chinese Journal of Traumatology 2019;22(5):274-277
PURPOSE:
Shoulder dislocation comprises 60% of all major joint dislocations worldwide and a number of reduction techniques are described in the literature with varying degrees of success. The description of a large number of techniques speaks for itself that no method is effective all the times and one should be acquainted with more than one technique. An ideal method of reduction should be simple, easily reproducible, relatively painless that can be performed unassisted without sedation or anaesthesia with minimal or no further complications. We report our results of using a novel method of anterior shoulder reduction described recently in the literature that claims to fulfil most of the characteristics of an ideal method if not all.
METHODS:
This prospective study was conducted in a tertiary care centre. All the cases of primary anterior shoulder dislocation presenting within three days of injury without any associated fracture or spine trauma with or without greater tuberosity fracture were included. The reduction was done using a novel method by orthopaedic residents in all cases. The need for a second reduction attempt or anaesthesia was considered a treatment failure. Time taken for reduction, pain felt during reduction and complications if any were noted.
RESULTS:
There were 47 (77.04%) males and 14 (22.95%) females with a mean age of (37.04 ± 12.63) years. The new technique was effective in locating a shoulder dislocation on the first attempt in 58 of the 61 dislocated shoulders (95.08%). The remaining three shoulders were reduced on second attempt by the same technique. Sedative, pre-medication or anaesthesia was not used in any case. The average time taken for the shoulder reduction was (130.5 ± 25.8) seconds and confidence interval (95%) 124-137 s. Iatrogenic complications were not seen in any of the patients.
CONCLUSION
This relatively painless technique of shoulder reduction is easy to acquire and practice in emergency department. The advantages of this manoeuvre and its associated safety may justly lead surgeons to select it as their primary method for reduction of anterior shoulder dislocations.