1.Antifungal Activity of Securinine against Some Plant Pathogenic Fungi.
Ashok K SINGH ; M B PANDEY ; Sarita SINGH ; Anil K SINGH ; U P SINGH
Mycobiology 2008;36(2):99-101
The alkaloid securinine was assessed against spore germination of some plant pathogenic and saprophytic fungi (Alternaria alternata, Alternaria brassicae, Alternaria brassicicola, Curvularia lunata, Curvularia maculans, Curvularia pallenscens, Colletotrichum musae, Colletotrichum sp., Erysiphe pisi, Helminthosporium echinoclova, Helminthosporium spiciferum, Heterosporium sp.). Spore germinations of all the tested fungi were inhibited. Alternaria brassicicola, C. lunata, C. pallenscens and H. spiciferum were highly sensitive as complete inhibition of spore germination was observed at very low concentrations (200 ppm).
Alternaria
;
Azepines
;
Brassica
;
Colletotrichum
;
Fungi
;
Germination
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Helminthosporium
;
Heterocyclic Compounds, Bridged-Ring
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Lactones
;
Musa
;
Phyllanthus
;
Piperidines
;
Plants
;
Spores
2.Assay method for quality control and stability studies of a new antimalarial agent (CDRI 99/411)$
Khandelwal Kiran ; Pachauri Deep Shakti ; Zaidi Sofia ; Dwivedi Pankaj ; Sharma Kumar Ashok ; Singh Chandan ; Dwivedi Kumar Anil
Journal of Pharmaceutical Analysis 2013;(5):335-340
CDRI compound no. 99/411 is a potent 1,2,4-trioxane antimalarial candidate drug under development at our Institute. An HPLC method for determination of CDRI 99/411 with its starting material and intermediates has been developed and validated for in process quality control and stability studies. The analytical performance parameters such as linearity, precision, accuracy, specificity, limit of detection (LOD) and lower limit of quantification (LLOQ) were determined according to International Conference on Harmonization ICH Q2(R1) guidelines. HPLC separation was achieved on a RP-select B Lichrospheres column (250 mm ? 4 mm, 5μm, Merck) using water containing 0.1%glacial acetic acid and acetonitrile as the mobile phase in a gradient elution. The eluents were monitored by a photo diode array detector at 245 and 275 nm. Based on signal to noise ratio of 3 and 10 the LOD of CDRI 99/411 was 0.55 mg/mL, while the LLOQ was 1.05 mg/mL. The calibration curves were linear in the range of 1.05-68 mg/mL. Precision of the method was determined by inter- and intra-assay variations within the acceptable range.
3.Endovascular management of intracranial pseudoaneurysm: an institutional experience
Vivek PHOGAT ; Ashok GANDHI ; Trilochan SRIVASTAVA ; Keshav MISHVA
Journal of Cerebrovascular and Endovascular Neurosurgery 2020;22(4):211-215
Objective:
Pseudoaneurysms (PSAs) of the internal carotid artery (ICA) and vertebral artery are rare entities but with varied treatment options. PSAs can be spontaneous or secondary to trauma, infections, malignancies or iatrogenic. To find out the efficacy of various endovascular interventions in the management of ICA and vertebral PSAs.
Methods:
The study included 14 patients diagnosed with intracranial PSAs who underwent endovascular interventions in SMS Medical College, Jaipur (Rajasthan) between June 2015 to January 2019. The clinical and radiological findings (computed tomography angiography and digital subtraction angiography) were reviewed and the consequent endovascular intervention carried out and their results were analyzed.
Results:
Total 14 patients were studied out of which 8 (57.1%) were anterior circulation PSAs and 6 (42.9%) were posterior circulation PSAs There were 10 (71.4%) females and 4 (28.5%) males between the age of 9 to 65 years. Only 2 patients with PSA had past history of trauma. Coiling was done in 8 patients (57.1%), stenting in 2 patients (14.2%), parent artery occlusion in 1 patient (7.1%), glue embolization in 1 patient (7.1%) while coiling with glue in 1 patient (7.1%) and flow diverter in 2 patients (14.2%). Immediate and complete occlusion was achieved in 11 (78.6%) patients while 3 (21.4%) patients had subtotal occlusion. 11 patients under follow up till June 2019 did not report recurrence or new neurological deficit.
Conclusions
Endovascular interventions is minimally invasive and safe treatment strategy for intracranial PSAs. The ultimate choice of technique depends on clinical and imaging characteristics.
4.Comparative Evaluation of Periprostatic Nerve Block with and without Intraprostatic Nerve Block in Transrectal Ultrasound-Guided Prostatic Needle Biopsy.
Santosh Kumar SINGH ; Ashok KUMAR ; Mahavir Singh GRIWAN ; Jyotsna SEN
Korean Journal of Urology 2012;53(8):547-551
PURPOSE: Controversy exists over the pain during prostate biopsy. Periprostatic nerve block is a commonly used anaesthetic technique during transrectal ultrasound (TRUS)-guided prostate biopsy. The recent trend toward increasing the number of cores has become popular. This practice further increases the need for a proper anaesthetic application. We compared the efficacy of periprostatic nerve block with or without intraprostatic nerve block. MATERIALS AND METHODS: We conducted a prospective double-blinded placebo-controlled study at our institute with 142 consecutive patients. Patients were randomly assigned into 3 groups. Group 1 received periprostatic nerve block with intraprostatic nerve block with 1% lignocaine. Group 2 patients were administered periprostatic nerve block only with 1% lignocaine. Group 3 received no anaesthesia. Patients were asked to grade their level of pain by using an 11-point linear analogue scale at the time of ultrasound probe insertion, at the time of anaesthesia, during biopsy, and 30 minutes after biopsy. RESULTS: The study groups were comparable in demographic profile, prostate-specific antigen (PSA) level, and prostate size. The mean pain scores at the time of biopsy in groups 1, 2, and 3 were 2.70, 3.39, and 4.16, respectively. Group 1 recorded the minimum mean pain score of 2.70 during prostate biopsy, which was significantly lower than the scores of groups 2 and 3 (p<0.001). There were no significant differences in pain scores among the 3 groups during probe insertion, during anaesthesia, or at 30 minutes after biopsy (p>0.05). CONCLUSIONS: Periprostatic nerve block with intraprostatic nerve block provides better pain control than does periprostatic nerve block alone in TRUS-guided prostate biopsy.
Analgesia
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Biopsy
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Biopsy, Needle
;
Humans
;
Lidocaine
;
Needles
;
Nerve Block
;
Prospective Studies
;
Prostate
;
Prostate-Specific Antigen
5.Performance of a low cost magnifying device, magnivisualizer, versus colposcope for detection of pre-cancer and cancerous lesions of uterine cervix.
Veena SINGH ; Aditya PARASHARI ; Sanjay GUPTA ; Pushpa SODHANI ; Ashok SEHGAL
Journal of Gynecologic Oncology 2014;25(4):282-286
OBJECTIVE: To assess the performance of a low cost magnifying device (Magnivisualizer) compared to a standard optical colposcope for detection of precancerous and cancerous lesions of the uterine cervix. METHODS: A total of 659 consecutive symptomatic women attending a gynecologic outpatient clinic underwent unaided visual inspection followed by cytology, visual inspection of the cervix using 5% acetic acid (VIA), and VIA under magnification (VIAM) with the Magnivisualizer. All women, independently of test results, were referred for colposcopic examination. Colposcopic-directed biopsies were obtained from all positive lesions and compared to positive VIAM cases. RESULTS: The detection rate for VIA positive lesions was 12% (134/659), while it was 29% for VIAM positive lesions (191/659). The sensitivities of detection of cervical intraepithelial neoplasia (CIN) 2 and higher lesions were 61.7% for VIA, 88.3% for VIAM, and 86.7% for colposcopy, with a specificity of 58.5% for VIA, 55.8% for VIAM, and 90.4% for colposcopy. The performance of colposcopy and VIAM was moderate (kappa, 0.48; 95% confidence interval [CI], 0.41 to 0.54) for detection of CIN 1 and higher lesions and excellent (kappa, 0.87; 95% CI, 0.82 to 0.94) for detection of CIN 2 and higher lesions. CONCLUSION: In low resource settings, where colposcopic facilities are not available at the community level, a simple low-cost, handheld Magnivisualizer can be considered a valid option for detection of cervical precancerous and cancerous lesions. However, it cannot replace traditional colposcopy because it has a low specificity that results in many unnecessary biopsies.
Acetic Acid/diagnostic use
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Adult
;
Aged
;
Biopsy/methods
;
*Colposcopes
;
Colposcopy
;
Early Detection of Cancer/*instrumentation/methods
;
Equipment Design
;
Female
;
Humans
;
Middle Aged
;
Neoplasm Grading
;
Optical Imaging/*instrumentation/methods
;
Outpatient Clinics, Hospital
;
Reproducibility of Results
;
Uterine Cervical Dysplasia/*diagnosis/pathology
;
Uterine Cervical Neoplasms/*diagnosis/pathology
6.Corrosive-Induced Gastric Outlet Obstruction.
Robin KAUSHIK ; Rajdeep SINGH ; Rajeev SHARMA ; Ashok K ATTRI ; A S BAWA
Yonsei Medical Journal 2003;44(6):991-994
Ten patients with gastric scarring and an outlet obstruction secondary to ingestion of corrosive substances were referred to our department for surgical management, between May 1999 and April 2003. Hydrochloric acid was the most common corrosive ingested (4 cases), although many were not aware of the nature of the ingested substance. An associated esophageal stricture was present in 5 cases (50%). All the patients initially underwent feeding jejunostomy, with definitive surgery performed at a later date. A partial gastrectomy was found to be the most satisfactory procedure, and was performed in 90% of the cases (9 patients).
Adult
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*Caustics
;
Enteral Nutrition
;
Female
;
Gastrectomy
;
Gastric Outlet Obstruction/*chemically induced/*surgery
;
Human
;
Jejunostomy
;
Male
;
Middle Aged
7.Evaluation of Impact of Voiding Posture on Uroflowmetry Parameters in Men.
Apul GOEL ; Gautam KANODIA ; Ashok Kumar SOKHAL ; Kawaljit SINGH ; Monica AGRAWAL ; Satyanarayan SANKHWAR
The World Journal of Men's Health 2017;35(2):100-106
PURPOSE: To evaluate the impact of voiding position on uroflowmetry parameters and to assess its potential clinical implications. MATERIALS AND METHODS: We conducted a prospective study from 2013 to 2015 and included men between 18 and 77 years old who were either healthy volunteers with an International Prostate Symptom Score (IPSS) ≤7 or men with benign prostate enlargement that were on alpha-blocker medication and had an IPSS <10. Participants underwent uroflowmetry and post-void residual urine (PVRU) measurements twice, once in a sitting position and once in a standing position. The participants were divided into 4 groups based on age (35 years or younger, 36 to 50 years, 51 to 60 years, and older than 60 years). RESULTS: A total of 740 men with a mean age of 40.35 years were evaluated. There was no significant difference in uroflowmetry parameters until the age of 50 years between the voiding positions. However, in those older than 50 years, PVRU volume was significantly lower in the sitting position than the standing position, whereas voiding time was significantly higher in the sitting position than the standing position. Other uroflowmetry parameters, including maximal and average urine flow rates, were non-significant. CONCLUSIONS: The voiding position plays an important role in the uroflowmetry parameters of elderly men. Voiding in the sitting position was found to be optimal for elderly men, whereas the role of the voiding position in healthy young men could not be determined. More research is needed to further study this issue.
Aged
;
Flowmeters
;
Healthy Volunteers
;
Humans
;
Lower Urinary Tract Symptoms
;
Male
;
Posture*
;
Prospective Studies
;
Prostate
;
Prostatic Hyperplasia
8.Adenocarcinoma in Horseshoe Kidney.
Rajinder JHOBTA ; Amarpreet Singh BAWA ; Ashok Kumar ATTRI ; Robin KAUSHIK
Yonsei Medical Journal 2003;44(4):744-746
An adenocarcinoma arising in a horseshoe kidney (HK) is rare. The case of a forty five-year-old male patient, presenting with a recurrent, painless hematuria, is reported. On investigation the patient was found to have a horseshoe kidney, with an adenocarcinoma in the left hemi-kidney, which was treated surgically, with a hemi-nephrectomy, of the involved part, being performed to excise the tumor. A brief review of the relevant literature is also presented.
Carcinoma, Renal Cell/*complications/pathology/surgery
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Human
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Kidney/*abnormalities/radiography
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Kidney Neoplasms/*complications/pathology/surgery
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Lymph Node Excision
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Male
;
Middle Aged
;
Nephrectomy/methods
9.Simultaneous bilateral shoulder and bilateral central acetabular fracture dislocation: What to do?
Hardik SHETH ; Abhijeet-Ashok SALUNKE ; Ramesh PANCHAL ; Jimmy CHOKSHI ; G-I NAMBI ; Saranjeet SINGH ; Amit PATEL ; Ranu SHETH
Chinese Journal of Traumatology 2016;19(1):59-62
Musculoskeletal injuries following seizures have a high morbidity and mortality. These injuries are often missed and the diagnosis is delayed due to a lack of clinical suspicion and appropriate investigations.We report a case of 72 years old male with simultaneous bilateral central acetabular fracture dislocation and bilateral posterior shoulder fracture dislocation secondary to an epileptic seizure. Present study high- lights the significance of clinical suspicion and clinico-radiological evaluation for diagnosis of a rare injury following episode of seizures. Simultaneous fracture dislocation of all four limbs treated with a holistic approach can lead to a good functional recovery. Surgical management with open reduction and internal fixation is preferred and replacement arthroplasty should be reserved for cases with implant failure and elderly patients.
Acetabulum
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injuries
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Aged
;
Epilepsy
;
complications
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Fracture Dislocation
;
diagnostic imaging
;
surgery
;
Fractures, Bone
;
surgery
;
Humans
;
Male
;
Shoulder Fractures
;
diagnostic imaging
;
surgery
10.Novel pan-lineage VP1 specific degenerate primers for precise genetic characterization of serotype O foot and mouth disease virus circulating in India
Sagar Ashok KHULAPE ; Jitendra Kumar BISWAL ; Chandrakanta JANA ; Saravanan SUBRAMANIAM ; Rabindra Prasad SINGH
Journal of Veterinary Science 2023;24(3):e40-
Analysis of the VP1 gene sequence of the foot and mouth disease virus (FMDV) is critical to understanding viral evolution and disease epidemiology. A standard set of primers have been used for the detection and sequence analysis of the VP1 gene of FMDV directly from suspected clinical samples with limited success. The study validated VP1-specific degenerate primer-based reverse transcription polymerase chain reaction (RT-PCR) for the qualitative detection and sequencing of serotype O FMDV lineages circulating in India. The novel degenerate primer-based RT-PCR amplifying the VP1 gene can circumvent the genetic heterogeneity observed in viruses after cell culture adaptation and facilitate precise viral gene sequence analysis from clinical samples.