1.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.
2.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
3.Cosmetic arm lengthening with monorail fixator.
Hemendra Kumar AGRAWAL ; Balvinder SINGH ; Mohit GARG ; Vipin KHATKAR ; Sumit BATRA ; Vinod Kumar SHARMA
Chinese Journal of Traumatology 2015;18(3):170-174
Upper limb length discrepancy is a rare occurrence. Humerus shortening may need specialized treatment to restore the functional and cosmetic status of upper limb. We report a case of humerus lengthening of 9 cm with a monorail external fixator and the result was observed during a 2-year follow-up. Humerus lengthening needs specialized focus as it is not only a cosmetic issue but also a functional demand. The monorail unilateral fixator is more functional and cosmetically acceptable, and thus becomes an effective treatment option.
Adult
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Bone Lengthening
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instrumentation
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External Fixators
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Female
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Humans
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Humerus
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physiology
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surgery
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Range of Motion, Articular
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Surgery, Plastic
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instrumentation
4.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
5.Plagiarism: a Viewpoint from India.
Durga Prasanna MISRA ; Vinod RAVINDRAN ; Anupam WAKHLU ; Aman SHARMA ; Vikas AGARWAL ; Vir Singh NEGI
Journal of Korean Medical Science 2017;32(11):1734-1735
No abstract available.
India*
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Plagiarism*
6.An Insight of Nanomaterials in Tissue Engineering from Fabrication to Applications
Ritika SHARMA ; Sanjeev KUMAR ; Bhawna ; Akanksha GUPTA ; Neelu DHEER ; Pallavi JAIN ; Prashant SINGH ; Vinod KUMAR
Tissue Engineering and Regenerative Medicine 2022;19(5):927-960
Tissue engineering is a research domain that deals with the growth of various kinds of tissues with the help of synthetic composites. With the culmination of nanotechnology and bioengineering, tissue engineering has emerged as an exciting domain. Recent literature describes its various applications in biomedical and biological sciences, such as facilitating the growth of tissue and organs, gene delivery, biosensor-based detection, etc. It deals with the development of biomimetics to repair, restore, maintain and amplify or strengthen several biological functions at the level of tissue and organs. Herein, the synthesis of nanocomposites based on polymers, along with their classification as conductive hydrogels and bioscaffolds, is comprehensively discussed. Furthermore, their implementation in numerous tissue engineering and regenerative medicine applications is also described. The limitations of tissue engineering are also discussed here. The present review highlights and summarizes the latest progress in the tissue engineering domain directed at functionalized nanomaterials.
7.Letter to the Editor: An Indian Perspective on Universal Open Access Publishing: Think of the Fire before Venturing Out of the Frying Pan!
Durga Prasanna MISRA ; Vinod RAVINDRAN ; Aman SHARMA ; Anupam WAKHLU ; Sakir AHMED ; Vir Singh NEGI ; Vikas AGARWAL
Journal of Korean Medical Science 2020;35(8):85-
No abstract available.
Fires
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Open Access Publishing
8.Alcohol associated liver cirrhotics have higher mortality after index hospitalization: Long-term data of 5,138 patients
Priyanka JAIN ; Saggere Muralikrishna SHASTHRY ; Ashok Kumar CHOUDHURY ; Rakhi MAIWALL ; Guresh KUMAR ; Ankit BHARADWAJ ; Vinod ARORA ; Rajan VIJAYARAGHAVAN ; Ankur JINDAL ; Manoj Kumar SHARMA ; Vikram BHATIA ; Shiv Kumar SARIN
Clinical and Molecular Hepatology 2021;27(1):175-185
Background/Aims:
Liver cirrhosis is an important cause of morbidity and mortality globally. Every episode of decompensation and hospitalization reduces survival. We studied the clinical profile and long-term outcomes comparing alcohol-related cirrhosis (ALC) and non-ALC.
Methods:
Cirrhosis patients at index hospitalisation (from January 2010 to June 2017), with ≥1 year follow-up were included.
Results:
Five thousand and one hundred thirty-eight cirrhosis patients (age, 49.8±14.6 years; male, 79.5%; alcohol, 39.5%; Child-A:B:C, 11.7%:41.6%:46.8%) from their index hospitalization were analysed. The median time from diagnosis of cirrhosis to index hospitalization was 2 years (0.2–10). One thousand and seven hundred seven patients (33.2%) died within a year; 1,248 (24.3%) during index hospitalization. 59.5% (2,316/3,890) of the survivors, required at least one readmission, with additional mortality of 19.8% (459/2,316). ALC compared to non-ALC were more often (P<0.001) male (97.7% vs. 67.7%), younger (40–50 group, 36.2% vs. 20.2%; P<0.001) with higher liver related complications at baseline, (P<0.001 for each), sepsis: 20.3% vs. 14.9%; ascites: 82.2% vs. 65.9%; spontaneous bacterial peritonitis: 21.8% vs. 15.7%; hepatic encephalopathy: 41.0% vs. 25.0%; acute variceal bleeding: 32.0% vs. 23.7%; and acute kidney injury 30.5% vs. 19.6%. ALC patients had higher Child-Pugh (10.6±2.0 vs. 9.0±2.3), model for end-stage liver-disease scores (21.49±8.47 vs. 16.85±7.79), and higher mortality (42.3% vs. 27.3%, P<0.001) compared to non-ALC.
Conclusions
One-third of cirrhosis patients die in index hospitalization. 60% of the survivors require at least one rehospitalization within a year. ALC patients present with higher morbidity and mortality and at a younger age.
9.Letter to the Editor: An Indian Perspective on Universal Open Access Publishing: Think of the Fire before Venturing Out of the Frying Pan!
Durga Prasanna MISRA ; Vinod RAVINDRAN ; Aman SHARMA ; Anupam WAKHLU ; Sakir AHMED ; Vir Singh NEGI ; Vikas AGARWAL
Journal of Korean Medical Science 2020;35(8):e85-
10.Hysteresis in human HCN4 channels: a crucial feature potentially affecting sinoatrial node pacemaking.
Yong-Fu XIAO ; Natalie CHANDLER ; Halina DOBRZYNSKI ; Eric S RICHARDSON ; Erica M TENBROEK ; Joshua J WILHELM ; Vinod SHARMA ; Anthony VARGHESE ; Mark R BOYETT ; Paul A IAIZZO ; Daniel C SIGG
Acta Physiologica Sinica 2010;62(1):1-13
The hyperpolarization-activated cyclic nucleotide-gated (HCN) channels modulate and regulate cardiac rhythm and rate. It has been suggested that, unlike the HCN1 and HCN2 channels, the slower HCN4 channel may not exhibit voltage-dependent hysteresis. We studied the electrophysiological properties of human HCN4 (hHCN4) channels and its modulation by cAMP to determine whether hHCN4 exhibits hysteresis, by using single-cell patch-clamp in HEK293 cells stably transfected with hHCN4. Quantitative real-time RT-PCR was also used to determine levels of expression of HCNs in human cardiac tissue. Voltage-clamp analysis revealed that hHCN4 current (I(h)) activation shifted in the depolarizing direction with more hyperpolarized holding potentials. Triangular ramp and action potential clamp protocols also revealed hHCN4 hysteresis. cAMP enhanced I(h) and shifted activation in the depolarizing direction, thus modifying the intrinsic hHCN4 hysteresis behavior. Quantitative PCR analysis of human sinoatrial node (SAN) tissue showed that HCN4 accounts for 75% of the HCNs in human SAN while HCN1 (21%), HCN2 (3%), and HCN3 (0.7%) constitute the remainder. Our data suggest that HCN4 is the predominant HCN subtype in the human SAN and that I(h) exhibits voltage-dependent hysteresis behavior that can be modified by cAMP. Therefore, hHCN4 hysteresis potentially plays a crucial role in human SAN pacemaking activity.
Biological Clocks
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physiology
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Cyclic AMP
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physiology
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Cyclic Nucleotide-Gated Cation Channels
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physiology
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Electrophysiological Phenomena
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HEK293 Cells
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Humans
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Hyperpolarization-Activated Cyclic Nucleotide-Gated Channels
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Muscle Proteins
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physiology
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Patch-Clamp Techniques
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Potassium Channels
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Sinoatrial Node
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physiology
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Transfection