1.Ultra-performance liquid chromatography electrospray ionization-tandem mass spectrometry method for the simultaneous determination of itraconazole and hydroxy itraconazole in human plasma
Ashish DWIVEDI ; Bhupinder SINGH ; Sandeep SHARMA ; R.s. LOKHANDAE ; Naveen DUBEY
Journal of Pharmaceutical Analysis 2014;(5):316-324
A highly sensitive, selective, and precise ultra-performance liquid chromatography tandem mass spectrometry method was developed and validated for simultaneous quantification of itraconazole and hydroxy itraconazole in human plasma by a single liquid-liquid extraction step. The precursor to product ion transitions of m/z 705.3/392.3, m/z 721.2/408.3 and m/z 708.2/435.4 were used to detect and quantify itraconazole, hydroxy itraconazole and itraconazole-d3 respectively. The lower limit of quantitation was found to be 0.500 ng/mL for itraconazole and 1.00 ng/mL for hydroxy itraconazole. The mean recoveries for itraconazole and hydroxy itraconazole were found to be 100.045% and 100.021%, respectively. This developed method with a chromatographic run time of 2.0 min was successfully applied to a bioequivalence study of 100 mg itraconazole capsule.
2.Delirium Associated with Olanzapine Therapy in an Elderly Male with Bipolar Affective Disorder.
Ravi C SHARMA ; Ashish AGGARWAL
Psychiatry Investigation 2010;7(2):153-154
Atypical antipsychotic medications are commonly used to treat symptoms of delirium. Olanzapine has been successfully used in the treatment of delirium. However, there have been few case reports of delirium associated with olanzapine. We hereby report a case of delirium associated with olanzapine therapy. Possible risk factors and underlying pathogenesis is discussed.
Aged
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Antipsychotic Agents
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Benzodiazepines
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Delirium
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Humans
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Male
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Mood Disorders
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Risk Factors
3.Improved simultaneous quantitation of candesartan and hydrochlorthiazide in human plasma by UPLC-MS/MS and its application in bioequivalence studies
Singh Bhupinder ; Lokhandae S. Rama ; Dwivedi Ashish ; Sharma Sandeep ; Dubey Naveen
Journal of Pharmaceutical Analysis 2014;(2):144-152
A validated ultra-performance liquid chromatography mass spectrometric method (UPLC-MS/MS) was used for the simultaneous quantitation of candesartan (CN) and hydrochlorothiazide (HCT) in human plasma. The analysis was performed on UPLC-MS/MS system using turbo ion spray interface. Negative ions were measured in multiple reaction monitoring (MRM) mode. The analytes were extracted using a liquid-liquid extraction (LLE) method by using 0.1 mL of plasma volume. The lower limit of quantitation for CN and HCT was 1.00 ng/mL whereas the upper limit of quantitation was 499.15 ng/mL and 601.61 ng/mL for CN and HCT respectively. CN d4 and HCT-13Cd2 were used as the internal standards for CN and HCT respectively. The chromatography was achieved within 2.0 min run time using a C18 Pheno-menex, Gemini NX (100 mm ~ 4.6 mm, 5 mm) column with organic mixture:buffer solution (80:20, v/v) at a flow rate of 0.800 mL/min. The method has been successfully applied to establish the bioequivalence of candesartan cilexetil (CNC) and HCT immediate release tablets with reference product in human subjects.
4.Anti cataract potential of phyllanthus niruri in galactose induced cataractogenesis of rat
Suresh Kumar GUPTA ; Vivekanandhan KALAISELVAN ; Ashish SHARMA ; Sushma SRIVASTAVA ; Shyam Sunder AGRAWAL
International Eye Science 2009;9(6):1011-1015
AIM: To evaluate anti cataract effect of phyllanthus niruri (PN) both in vitro and in vivo galactose induced cataract.METHODS: Aqueous extract of PN was evaluated against galactose-induced cataract both in vitro and in vivo. Galactosaemic cataract was induced in rats by feeding 300g/L galactose diet. PN was administered orally at three-dose levels 75, 150 and 300 mg/kg of body weight. Rat lenses were subjected to osmotic stress in vitro by incorporating galactose (30mmol/L) in the culture medium. The effect of PN (720 and 880μg/mL) on the glutathione (GSH) and polyols levels was studied.RESULTS: PN significantly delayed the onset and progression of cataract in vivo. In addition to the delay in reaching various stages of development of cataract, stage IV did not develop with lower doses till the completion of experimental period. Lenses treated with PN 880μg/mL concentration showed higher levels of GSH and decreased levels of polyols in vitro. In vivo, 75mg/kg significantly delayed the onset and progression of cataract as compared to control.CONCLUSION: PN delayed the process of cataracto-genesis in the experimental models. However, further study is required to extrapolate the use in human beings for the prevention of cataract.
5.Dhat Syndrome Assessment Using Mixed Methodology
Ashish Pundhir ; Rohit Kant Srivastava ; Saurabh Sharma ; Prachi Singh ; H S Joshi ; Vijender Aggarwal
ASEAN Journal of Psychiatry 2015;16(2):1-23
Objectives: Dhat syndrome is a cultural bound syndrome in which affected individuals have morbid pre-occupation with semen loss in their urine and its impact on the body. Previous studies have explored the symptomatology and perception regarding seminal discharge of such patients while there is lacked of literature on the assessment by quacks and practitioner of alternative and complementary practitioners (ACMP). Therefore, in addition to objectives of previous studies, this study explores the reprehensibility of such practitioners as they may not be giving correct advice to such patients.
Methods: For duration of three months, this mixed method study was conducted in Rohilkhand Medical College campus; individuals were approached both in and outside the Psychiatric Outpatient Department using purposive sampling procedure. ICD-10 diagnostic criterion was used to include affected individual in the study sample. Subsequently, a semi-structured questionnaire to document their socio-demographic data and symptomatology was used. Further, previous consultation to quack, ACMPs and allopathic practitioners other than psychiatrist and advice given to the patient by them was obtained via in-depth interview. The quantitative data was analyzed through proportions whereas qualitative data via thematic analysis.
Results: There were 38 out of 110 with Dhat syndrome. Invariably, they complained of undue concern regarding debilitating effects of seminal discharge and harmful for the body. A total 21.1% had prior consultation to ACMPs and attributing it to masturbation and hot weather. Surprisingly, allopathic practitioners consulted gave incorrect advices.
Conclusion: Dhat syndrome affects individuals irrespective of their social and education background. Sex education among the masses and emphasis for awareness of this syndrome among ACMPs and allopathic practitioners other than psychiatrist is necessary to reduce this cultural bound syndrome.
6.Ongoing Clinical Trials of Vaccines to Fight against COVID-19 Pandemic
Chiranjib CHAKRABORTY ; Ashish Ranjan SHARMA ; Manojit BHATTACHARYA ; Garima SHARMA ; Rudra P. SAHA ; Sang-Soo LEE
Immune Network 2021;21(1):e5-
Coronavirus disease 2019 (COVID-19) has developed as a pandemic, and it created an outrageous effect on the current healthcare and economic system throughout the globe. To date, there is no appropriate therapeutics or vaccines against the disease. The entire human race is eagerly waiting for the development of new therapeutics or vaccines against severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). Efforts are being taken to develop vaccines at a rapid rate for fighting against the ongoing pandemic situation. Amongst the various vaccines under consideration, some are either in the preclinical stage or in the clinical stages of development (phase-I, -II, and -III). Even, phase-III trials are being conducted for some repurposed vaccines like Bacillus Calmette–Guérin, polio vaccine, and measlesmumps-rubella. We have highlighted the ongoing clinical trial landscape of the COVID-19 as well as repurposed vaccines. An insight into the current status of the available antigenic epitopes for SARS-CoV-2 and different types of vaccine platforms of COVID-19 vaccines has been discussed. These vaccines are highlighted throughout the world by different news agencies. Moreover, ongoing clinical trials for repurposed vaccines for COVID-19 and critical factors associated with the development of COVID-19 vaccines have also been described.
7.Primary pyomyositis in North India: a clinical, microbiological, and outcome study.
Susheel KUMAR ; Ashish BHALLA ; Rajveer SINGH ; Navneet SHARMA ; Aman SHARMA ; Vikas GAUTAM ; Surjit SINGH ; Subhash VARMA
The Korean Journal of Internal Medicine 2018;33(2):417-431
BACKGROUND/AIMS: Pyomyositis is an infective condition with primary involvement of the skeletal muscles. There is sparse recent literature on patients with pyomyositis. METHODS: This study was carried out at emergency services of a tertiary care center located in subtropical area of Indian subcontinent. RESULTS: Sixty-two patients of primary pyomyositis formed the study cohort. Mean age of occurrence was 29.9 ± 14.8 years. There were 54 men. Twelve patients had underlying medical diseases. Muscle pain was seen in all 62 patients. Forty-eight patients (77.4%) had the fever. Most common site of involvement was thigh muscles (n = 29, 46.8%). Forty-nine patients (79%) presented in the suppurative stage of illness. Patients with comorbidities were older (age: median 36 years [interquartile range (IQR), 25 to 47] vs. 24 years [IQR, 16 to 35], p = 0.024), had higher culture positivity with gram-negative organisms (8/9 [88.89%] vs. 6/29 [20.69%], p = 0.001). Importantly, higher number of these patients received inappropriate antibiotics initially. Patients with positive pus culture result had higher complication rate (32/38 [84.21%] vs. 10/18 [55.56%], p = 0.044). Six patients (9.7%) had in-hospital mortality. Lower first-day serum albumin, initial inappropriate antibiotic therapy, and advanced form of the disease at presentation were associated with increased in-hospital mortality. CONCLUSIONS: Primary pyomyositis is not an uncommon disease entity. Patients with comorbidities were more likely to receive initial inappropriate antibiotic therapy. Patients with positive pus culture report had the higher rate of complications. Lower first-day serum albumin, initial inappropriate antibiotic therapy and advanced form of the disease at presentation were associated with increased in-hospital mortality.
Anti-Bacterial Agents
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Cohort Studies
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Comorbidity
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Emergencies
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Fever
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Hospital Mortality
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Humans
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India*
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Male
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Muscle, Skeletal
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Muscles
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Myalgia
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Outcome Assessment (Health Care)*
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Pyomyositis*
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Serum Albumin
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Suppuration
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Tertiary Care Centers
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Thigh
8.Application of monorail fixator for femoral gap nonunion.
Hemendra-Kumar AGRAWAL ; Ashish JAIMAN ; Vipin KHATKAR ; Vinod-Kumar SHARMA
Chinese Journal of Traumatology 2014;17(4):239-241
Difficult femoral nonunion takes account of infective nonunion and aseptic gap nonunion. Limb length discrepancy and nonunion need to be tackled simultaneously. Conventionally Ilizarov ring fixator is in vogue but it has some limitations. To overcome these, monorail fixator is an effective alternative. Persistent good results can be obtained if we can get a perfect anatomical alignment and good regeneration.
External Fixators
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Femoral Fractures
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surgery
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Fracture Fixation
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instrumentation
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Fractures, Ununited
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surgery
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Humans
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Ilizarov Technique
9.An unusual cause of radial nerve palsy.
Hemendra Kumar AGRAWAL ; Vipin KHATKAR ; Mohit GARG ; Balvinder SINGH ; Ashish JAIMAN ; Vinod Kumar SHARMA
Chinese Journal of Traumatology 2014;17(3):175-177
Neurapraxia frequently occurs following traction injury to the nerve intraoperatively, leading to radial nerve palsy which usually recovers in 5-30 weeks. In our case, we had operated a distal one-third of humeral shaft fracture and fixed it with 4.5 mm limited contact dynamic compression plate. The distal neurovascular status of the limb was assessed postoperatively in the recovery room and was found to be intact and all the sensory-motor functions of the radial nerve were normal. On the second postoperative day, following the suction drain removal and dressing, patient developed immediate radial nerve palsy along with wrist drop. We reviewed the literature and found no obvious cause for the nerve palsy and concluded that it was due to traction injury to the radial nerve while removing the suction drain in negative pressure.
Adult
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Female
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Humans
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Humeral Fractures
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surgery
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Postoperative Complications
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Radial Neuropathy
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etiology
10.Combined radial and median nerve injury in diaphyseal fracture of humerus: a case report.
Rajesh ROHILLA ; Rohit SINGLA ; Narender-Kumar MAGU ; Roop SINGH ; Ashish DEVGUN ; Reetadyuti MUKHOPADHYAY ; Paritosh GOGNA
Chinese Journal of Traumatology 2013;16(6):365-367
Radial nerve palsy is the most common neurological involvement in humeral shaft fractures. But combined radial and median nerve injury in a closed diaphyseal fracture of the humerus is rare. Combined injury to both radial and median nerve can cause significant disability. A detailed clinical examination is therefore necessary following humeral shaft fractures. We report a patient with closed diaphyseal humeral fracture (AO 12A-2.3) together with radial and median nerve palsy, its management and review of the literature. As the patient had two nerves involved, surgical exploration was planned. Fracture was reduced and fixed with a 4.5 mm narrow dynamic compression plate. There was no external injury to both radial and median nerves on surgical exploration. Neurological recovery started at 3 weeks' follow-up. Complete recovery was seen at 12 weeks. Careful clinical examination is of the utmost importance in early diagnosis of combined nerve injuries, which allows better management and rehabilitation of the patient.
Bone Plates
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Humans
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Humeral Fractures
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surgery
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Humerus
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Median Nerve
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Radial Neuropathy