1.Intelligent Handheld Expert System (HES) For Diagnosis Of Autism Spectrum Disorder And Its Severity Level
Vikas Khullar ; Harjit Pal Singh, ; Manju Bala
ASEAN Journal of Psychiatry 2018;19(1):2-
Objective: Autism Spectrum Disorder (ASD) is a complex neurological developmental disorder that could be diagnosed early usually before the age of 3 years and the diagnosis is the most important determining factor for the treatment of ASD. The aim of present work is to design and implement a Handheld Expert System (HES) based on Diagnostic and Statistical Manual of Mental Disorder, fifth edition (DSM-V) for the diagnosis and severity assessment of ASD. The hand-held device was trained by artificial neural network to correctly diagnosis ASD and identifies its severity level. Methods: The learning of HES for ASD diagnosis was performed by a back propagation neural network algorithm with data set created based on DSM-V. The ability of Artificial Intelligence (AI) based HES was measured in terms of epochs, training/testing data, and statistical stability on the basis of accuracy, losses, mean squared error, and execution time to validate the performance of the system. The HES was designed to consume less training/testing time with more efficient and accurate AI approach. The stability of HES was validated for the data set of 40 ASD and Typically Developed (TD) subjects (20 ASD and 20 TD). Results: The implementation of HES for diagnosis of 40 subjects (20 ASD and 20 TD) based on the proposed expert system has provided 100% accuracy in reference with DSM-V. The results were also validated by statistical analysis. Conclusion: Since AI based HES for diagnosis of ASD and determination of its severity provided accurate results in reference to DSM-V criteria, the possibility of the use of proposed HES for diagnosis of ASD is very high.
2.Analysis of isoquinoline alkaloids from Mahonia leschenaultia and Mahonia napaulensis roots using UHPLC-Orbitrap-MSn and UHPLC-QqQLIT-MS/MS
Singh AWANTIKA ; Bajpai VIKAS ; Kumar SUNIL ; Kumar BRIJESH
Journal of Pharmaceutical Analysis 2017;7(2):77-86
Mahonia leschenaultia (ML) and Mahonia napaulensis (MN) are less known and unexplored medicinal plants of the family Berberidaceae. They are used by the Todas of Nilgiris in their religious and medical practices but chemically less identified. Hence, we decided to do extensive phytochemical analysis to explore the potential of these plant extracts. An ultrahigh performance electrospray tandem mass spectrometry (UHPLC–ESI–MS/MS) method was successfully developed for qualitative analysis of the bioactive components in Mahonia species using Orbitrap Velos Pro mass spectrometer. Sixteen compounds were identified by comparison of their retention times and mass spectra (MS) with authentic standards and reported literature. Multi-stage mass spectra (MS2–8) for the identification of protoberberine and aporphine alkaloids showed the sequential expulsion of all the substituents attached with their basic skeleton followed by CO loss. Eight of the identified compounds (berberine, jatrorrhizine, palmatine, magnoflorine, isocorydine, glaucine, tetrahydropalmatine and tetrahydroberberine) were simultaneously determined by another UHPLC–ESI–MS/MS method under the multiple reactions monitoring (MRM) mode quantitatively using triple quadrupole linear ion trap mass spectrometer. The analytical method was validated for 8 bioactive compounds with overall recovery in the range 98.5%–103.6%(RSD≤2.2%), precise (RSD≤2.07%) and linear (r≥0.9995) over the concentration range of 0.5–1000 ng/mL and successfully applied in ML and MN roots, which suggests the suitability of the proposed approach for the routine analysis of Mahonia species and their quality control.
3.Curculigo orchioides: the black gold with numerous health benefits.
Chauhan, Nagendra Singh ; Sharma, Vikas ; Thakur, Mayank ; Dixit, Vinod Kumar
Journal of Integrative Medicine 2010;8(7):613-23
Curculigo orchioides Gaertn. (family Amarylladaceae) is an endangered rasayana herb which is popularly known as "Kali Musli". The plant is native to India, and holds a special position as a potent adaptogen and aphrodisiac in Ayurvedic system of medicine. It is an important ingredient of many Ayurvedic preparations and is considered to have aphrodisiac, immunostimulant, hepatoprotective, antioxidant, anticancer and antidiabetic activities. Various chemical constituents like mucilage, phenolic glycosides, saponins and aliphatic compounds from the plant have been reported. The plant is also considered as an important component of various herbal preparations of the Chinese and Kampo medicine. The present review is an attempt to enumerate various biologically tested activities and evaluation of different phytochemicals present in this important medicinal plant.
4.Structural characterization of monoterpene indole alkaloids in ethanolic extracts of Rauwolfia species by liquid chromatography with quadrupole time-of-flight mass spectrometry
Kumar Sunil ; Singh Awantika ; Bajpai Vikas ; Srivastava Mukesh ; Singh Pratap Bhim ; Kumar Brijesh
Journal of Pharmaceutical Analysis 2016;6(6):363-373
Rauwolfia species (Apocynaceae) are medicinal plants well known worldwide due to its potent bioactive monoterpene indole alkaloids (MIAs) such as reserpine, ajmalicine, ajmaline, serpentine and yohimbine. Reserpine, ajmalicine and ajmaline are powerful antihypertensive, tranquilizing agents used in hypertension. Yohimbine is an aphrodisiac used in dietary supplements. As there is no report on the comparative and comprehensive phytochemical investigation of the roots of Rauwolfia species, we have developed an efficient and reliable liquid chromatography-tandem mass spectrometry (LC–MS/MS) method for ethanolic root extract of Rauwolfia species to elucidate the fragmentation pathways for dereplication of bioactive MIAs using high-performance liquid chromatography coupled with electrospray ionization quadrupole time-of-flight tandem mass spectrometry (HPLC–ESI–QTOF–MS/MS) in positive ion mode. We identified and established diagnostic fragment ions and fragmentation pathways using reserpine, ajmalicine, ajmaline, serpentine and yohimbine. The MS/MS spectra of reserpine, ajmalicine, and ajmaline showed C-ring-cleavage whereas E-ring cleavage was observed in serpentine via Retro Diels Alder (RDA). A total of 47 bioactive MIAs were identified and characterized on the basis of their molecular formula, exact mass measurements and MS/MS analysis. Reserpine, ajmalicine, ajmaline, serpentine and yohimbine were unambiguously identified by comparison with their authentic standards and other 42 MIAs were tentatively identified and characterized from the roots of Rauwolfia hookeri, Rauwolfia micrantha, Rauwolfia serpentina, Rauwolfia verticillata, Rauwolfia tetraphylla and Rauwolfia vomitoria. Application of LC–MS followed by principal component analysis (PCA) has been successfully used to discriminate among six Rauwolfia species.
5.Rapid screening and distribution of bioactive compounds in different parts of Berberis petiolaris using direct analysis in real time mass spectrometry
Singh Awantika ; Bajpai Vikas ; Srivastava Mukesh ; Arya Ram Kamal ; Kumar Brijesh
Journal of Pharmaceutical Analysis 2015;5(5):332-335
Berberis petiolaris Wall. ex G. Don, an unexplored medicinal plant belonging to the family Berberidaceae, is a large deciduous shrub found in Western Himalaya between 1800-3000 m. Chemical profiling of fruit, leaf, root and stem was done by direct analysis in real time mass spectrometry followed by multivariate analysis for discrimination among the plant parts. The bioactive compounds, including magnoflorine, berberine, jatrorrhizine, thalifendine/berberrubine, demethyleneberberine, reticuline, 8-oxoberberine, N-methyltetrahydroberberine, tetrahydropalmatine, tetrahydroberberine and palmatine, were identified by their exact mass measurement and the corresponding molecular formula of each compound. A comparative study of distribution pattern for all these bioactive alkaloids showed qualitative and quantitative variations in different parts of B. petiolaris. Principal component analysis clearly dis-criminated each part of B. petiolaris plant.
7.Poor Functional Outcome in Patients with Voluntary Knee Instability after Anterior Cruciate Ligament Reconstruction
Munish SOOD ; Vikas KULSHRESTHA ; Julie SACHDEVA ; Amresh GHAI ; Ajaydeep SUD ; Shalender SINGH
Clinics in Orthopedic Surgery 2020;12(3):312-317
Background:
Anterior cruciate ligament reconstruction (ACLR) remains the gold standard treatment for anterior cruciate ligament (ACL) injury. However, a good functional outcome even after a successful surgery depends on multiple factors. It has been observed that certain patients with a chronic ACL injury demonstrate knee instability voluntarily. The authors observed that these patients might not perform well even after a successful surgery. This study aims to assess the outcome after ACL and other ligament reconstruction in patients with voluntary knee instability.
Methods:
From a total of 824 patients who underwent ACLR, 13 patients with a history of voluntary knee instability were selected, and data of these patients (demographic and clinical profile) were obtained. Outcomes of surgery in this group of patients were evaluated by using Lysholm score and Tegner activity level.
Results:
All patients were young men with a chronic ACL injury and manifested instability. Associated injuries were lateral meniscus tear in 3 patients, medial meniscus tear in 2, and posterolateral corner (PLC) injury in 3. ACLR was done using the semitendinosus-gracilis graft in all patients. Further, anterolateral ligament reconstruction was done in 2 patients and PLC reconstruction, in 3 patients. The mean Lysholm score was 54.76 (range, 48–62) preoperatively and 60.92 (range, 54–78) at a mean follow-up of 14.3 months (range, 11–26 months). The median Tegner activity level was 6 (range, 5–7) before injury and 4 (range, 3–5) at the final follow-up. Twelve of the 13 patients were able to demonstrate instability voluntarily at the time of the final follow-up.
Conclusions
In patients with ACL and other ligament injuries who demonstrated voluntary knee instability, the functional outcome even after successful ligament reconstruction was poor.
8.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
;
Cohort Studies
;
Comorbidity
;
Emergencies
;
Fever
;
Hospital Mortality
;
Humans
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India*
;
Male
;
Muscle, Skeletal
;
Muscles
;
Myalgia
;
Outcome Assessment (Health Care)*
;
Pyomyositis*
;
Serum Albumin
;
Suppuration
;
Tertiary Care Centers
;
Thigh
9.Post-living donor liver transplant biliary strictures: prevalence, predictors, and long-term outcomes in a retrospective study
Shekhar Singh JADAUN ; Phani Kumar NEKARAKANTI ; Sushant BHATIA ; Mukesh KUMAR ; Pankaj SINGH ; Vikas SINGLA ; Shweta A. SINGH ; Shaleen AGARWAL ; Sanjiv SAIGAL ; Subhash GUPTA
Clinical Transplantation and Research 2025;39(1):55-65
Background:
Post-liver transplant biliary strictures are a common cause of morbidity among patients who have undergone living donor liver transplantation (LDLT). Limited data are available concerning the response rates to various treatment modalities and the long-term outcomes for these individuals.
Methods:
This study was a retrospective analysis of a prospectively collected database, including adult patients aged 18 years or older who underwent LDLT between 2006 and 2022.
Results:
Between 2006 and 2022, a total of 3,550 patients underwent liver transplantation. After applying exclusion criteria, 2,956 patients were included in the analysis.During the study period, 344 patients (11.6%) developed biliary strictures. Of these, 77.0% underwent endoscopic retrograde cholangiopancreatography as the primary treatment for biliary strictures, while the remainder received percutaneous transhepatic biliary drainage. Identified risk factors for post-liver transplant biliary strictures included the presence of multiple biliary anastomoses, bile leak, and older donor and recipient ages. The overall graft and patient survival rates were comparable between patients with and without biliary strictures, at both 1 year (93.0% vs. 96.3%) and 5 years (82.3% vs. 79.2%).
Conclusions
Biliary strictures are observed in approximately 11% of recipients following LDLT. While the presence of biliary strictures is associated with increased morbidity, it does not significantly impact patient survival.
10.Post-living donor liver transplant biliary strictures: prevalence, predictors, and long-term outcomes in a retrospective study
Shekhar Singh JADAUN ; Phani Kumar NEKARAKANTI ; Sushant BHATIA ; Mukesh KUMAR ; Pankaj SINGH ; Vikas SINGLA ; Shweta A. SINGH ; Shaleen AGARWAL ; Sanjiv SAIGAL ; Subhash GUPTA
Clinical Transplantation and Research 2025;39(1):55-65
Background:
Post-liver transplant biliary strictures are a common cause of morbidity among patients who have undergone living donor liver transplantation (LDLT). Limited data are available concerning the response rates to various treatment modalities and the long-term outcomes for these individuals.
Methods:
This study was a retrospective analysis of a prospectively collected database, including adult patients aged 18 years or older who underwent LDLT between 2006 and 2022.
Results:
Between 2006 and 2022, a total of 3,550 patients underwent liver transplantation. After applying exclusion criteria, 2,956 patients were included in the analysis.During the study period, 344 patients (11.6%) developed biliary strictures. Of these, 77.0% underwent endoscopic retrograde cholangiopancreatography as the primary treatment for biliary strictures, while the remainder received percutaneous transhepatic biliary drainage. Identified risk factors for post-liver transplant biliary strictures included the presence of multiple biliary anastomoses, bile leak, and older donor and recipient ages. The overall graft and patient survival rates were comparable between patients with and without biliary strictures, at both 1 year (93.0% vs. 96.3%) and 5 years (82.3% vs. 79.2%).
Conclusions
Biliary strictures are observed in approximately 11% of recipients following LDLT. While the presence of biliary strictures is associated with increased morbidity, it does not significantly impact patient survival.