1.Role of Single Port Rigid Thoracoscopy in Undiagnosed Pleural Effusion
Jagdish RAWAT ; Anil KUMAR ; Parul MRIGPURI ; Dev Singh JANGPANGI ; Abhay Pratap SINGH ; Ritisha BHATT
Tuberculosis and Respiratory Diseases 2024;87(2):194-199
Background:
In recent years, medical thoracoscopy has been well established to play an important role in undiagnosed pleural effusion; however, this procedure is underutilized due to limited availability of the instruments it requires. This study analysed the outcome of single port rigid thoracoscopy in patients with undiagnosed pleural effusions.
Methods:
This study retrospectively analysed the outcomes of all patients with undiagnosed pleural effusion presenting to our centre between 2016 to 2020 who underwent single port rigid medical thoracoscopy as a diagnostic procedure.
Results:
In total, 92 patients underwent single port rigid medical thoracoscopy. The most common presenting symptom was shortness of breath. A majority of the patients had lymphocytic exudative pleural effusion. The average biopsy sample size was 18 mm, and no major complication was reported in any of the patients.
Conclusion
Single port rigid thoracoscopy is a safe and well-tolerated procedure that yields a biopsy of a larger size with high diagnostic yield. Moreover, the low cost of the instruments required by this procedure makes it particularly suited for use in developing countries.
2.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
3.Antihyperglycemic and antihyperlipidemic activity of ethyl acetate fraction of Rhododendron arboreum Smith flowers in streptozotocin induced diabetic rats and its role in regulating carbohydrate metabolism.
Neeraj VERMA ; G AMRESH ; P K SAHU ; Ch V RAO ; Anil Pratap SINGH
Asian Pacific Journal of Tropical Biomedicine 2012;2(9):696-701
OBJECTIVETo explore and identify the most potent antihyperglycemic fraction from the ethanol extract of Rhododendron arboreum (R. arboreum) flowers.
METHODSNormal and streptozotocin induced diabetic rats were treated with all four fractions of R. arboreum flowers for short term and with fraction 3 for long term study. On completion of the treatment, a range of indicators were tested including fasting blood glucose, plasma protein, haemoglobin A1C, insulin secretion, body weight, blood lipid profile and carbohydrate metabolism regulating enzymes of liver.
RESULTSIn short term study, the fraction 3 (Active fraction) produced a significant (P<0.000 1) reduction (73.6%) in blood glucose level at a dose of 200 mg/kg after the treatment in the diabetic rats. Administration of active fraction (200 and 400 mg/kg) once daily for 30 d in streptozotocin diabetic rats resulted in a significant (P<0.001 to P<0.000 1) fall in blood glucose level, hemoglobin A1C, serum urea and creatinine with significant but a increase in insulin level similar to standard drug glybenclamide. Further, the active fraction showed antihyperlipidemic activity as evidenced by significant (P<0.001 to P<0.000 1) decreases in serum serum total cholesterol, triglycerides, low density lipoprotein cholesterol and very low density cholesterol levels coupled together with elevation of high density lipoprotein cholesterol in the diabetic rats.
CONCLUSIONSThe active fraction of R. arboreum flowers decreases streptozotocin induced hyperglycemia by promoting insulin secretion and glycolysis and by decreasing gluconeogenesis.
Animals ; Blood Glucose ; drug effects ; Carbohydrate Metabolism ; drug effects ; Diabetes Mellitus, Experimental ; drug therapy ; metabolism ; Disease Models, Animal ; Flowers ; chemistry ; Hypoglycemic Agents ; chemistry ; pharmacology ; Hypolipidemic Agents ; chemistry ; pharmacology ; Lipids ; blood ; Male ; Phytochemicals ; chemistry ; Plant Extracts ; chemistry ; pharmacology ; Rats ; Rhododendron ; chemistry ; Toxicity Tests, Acute