1.Exploring the phytoconstituents targeting TNF-α as potential lead compounds to treat inflammatory diseases: an in-silico approach
Digital Chinese Medicine 2022;5(3):264-275
Objective To explore the anti-inflammatory phytoconstituents from various plant sources as tumour necrosis factor-α (TNF-α)-inhibitor, a mediator involved in the inflammatory disorder, by in silico molecular docking. Methods Based on previous findings, we performed the in silico assessment of anti-inflammatory phytoconstituents from different medicinal plants to understand their binding patterns against TNF-α (PDB ID: 6OP0) using AutoDock Vina. Molecular docking was performed by setting a grid box (25 × 25 × 25) Å centered at [– 12.817 × (– 1.618) × 19.009] Å with 0.375 Å of grid spacing. Furthermore, Discovery Studio Client 2020 program was utilized to assess two- and three-dimensional (2D and 3D) hydrogen-bond interactions concerning an amino acid of target and ligand. Physicochemical properties were reported using the Lipinski’s rule and SwissADME database to support the in silico findings. Results From the selected medicinal plants, more than 200 phytocompounds were screened against TNF-α protein with binding scores in the range of – 12.3 to – 2.5 kcal/mol. Amongst them, emodin, aloe-emodin, pongamol, purpuritenin, semiglabrin, ellagic acid, imperatorin, α-tocopherol, and octanorcucurbitacin A showed good binding affinity as – 10.6, – 10.0, – 10.5, – 10.1, – 11.2, – 10.3, – 10.1, – 10.1, and – 10.0 kcal/mol, respectively. Also, the absorption, distribution, metabolism, excretion, and toxicology (ADMET) profiles were well within acceptable limits. Conclusion Based on our preliminary findings, we conclude that the selected phytoconstituents have the potential to be good anti-inflammatory candidates by inhibiting the TNF-α target. These compounds can be further optimized and validated as new therapeutic components to develop more effective and safe anti-inflammatory drugs.
2.Pseudoaneurysm of profunda femoris artery following dynamic hip screw fixation for intertrochanteric femoral fracture.
Shailendra SINGH ; Sumit ARORA ; Ankit THORA ; Ram MOHAN ; Sumit SURAL ; Anil DHAL
Chinese Journal of Traumatology 2013;16(4):233-236
Dynamic hip screw fixation is a commonly performed procedure for internal fixation of intertrochanteric femoral fractures. Arterial injury following the operative fixation is a rare but serious event. We present a patient who developed pseudoaneurysm of profunda femoris artery after internal fixation of intertrochanteric fracture with a dynamic hip screw. The diagnosis was confirmed by angiographic study and it was successfully treated by coil embolization.
Accidental Falls
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Aged
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Aneurysm, False
;
diagnostic imaging
;
etiology
;
therapy
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Angiography
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Bone Screws
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Embolization, Therapeutic
;
Female
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Femoral Artery
;
Femoral Fractures
;
surgery
;
Fracture Fixation, Internal
;
methods
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Hip Fractures
;
surgery
;
Humans
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Postoperative Complications
;
diagnosis
;
etiology
;
therapy
3.Ipsilateral open anterior hip dislocation and open posterior elbow dislocation in an adult.
Sunil KUMAR ; Akhilesh RATHI ; Sunil SEHRAWAT ; Vikas GUPTA ; Jatin TALWAR ; Sumit ARORA
Chinese Journal of Traumatology 2014;17(1):60-62
Open anterior dislocation of the hip is a very rare injury, especially in adults. It is a hyperabduction, external rotation and extension injury. Its combination with open posterior dislocation of the elbow has not been described in English language-based medical literature. Primary resuscitation, debridement, urgent reduction of dislocation, and adequate antibiotic support resulted in good clinical outcome in our patient. At 18 months follow-up, no signs of avascular necrosis of the femoral head or infection were observed.
Accidents, Traffic
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Elbow Joint
;
injuries
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Hip Dislocation
;
complications
;
pathology
;
Humans
;
Joint Dislocations
;
complications
;
Male
;
Soft Tissue Injuries
;
complications
;
Young Adult
4.Missed posterior shoulder dislocation with malunited proximal humerus fracture.
Sunil KUMAR ; Rajesh Kumar CHOPRA ; Abhishek KASHYAP ; Sumit ARORA
Chinese Journal of Traumatology 2013;16(6):375-378
Posterior dislocation of the shoulder may be missed or neglected at initial presentation especially in developing countries. We present a case of 40-year-old Indian man who had 3-month missed posterior dislocation of the right shoulder along with malunited fracture of the anatomical neck of the humerus. Open reduction and stabilization with modified McLaughlin procedure was performed. Rotational osteotomy of proximal humerus had to be performed as supplementary procedure to keep the humeral head stable in glenoid cavity during functional range of movements. The patient had excellent result of the shoulder at 3 years follow-up.
Humans
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Humerus
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Osteotomy
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Shoulder Dislocation
;
surgery
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Shoulder Fractures
;
surgery
5.Rare double fracture-dislocation of the thumb: a case report and review of the literature.
Davinder SINGH ; Loveneesh G KRISHNA ; Sunil DHAKA ; Surender KUMAR ; Sumit ARORA
Chinese Journal of Traumatology 2013;16(4):240-242
Simultaneous fracture/dislocation of the thumb carpometacarpal (CMC) joint and dislocation of the metacarpophalangeal (MCP) joint is considered as a rare injury pattern. We report an unusual case of dorsal dislocation of MCP joint of the thumb associated with extraarticular fracture of the base of the first metacarpal in a 28-year-old man. The dislocation of MCP joint had been missed during initial presentation at a peripheral centre. The patient made an uneventful recovery following open reduction and fixation with 1.25 mm Kirschner wire of the MCP joint along with repair of the ulnar collateral ligament. This injury pattern has not been previously reported to the best of our knowledge in the English-language based medical literature.
Accidental Falls
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Adult
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Bone Wires
;
Diagnostic Imaging
;
Fractures, Bone
;
diagnosis
;
surgery
;
Humans
;
Joint Dislocations
;
diagnosis
;
surgery
;
Male
;
Metacarpophalangeal Joint
;
injuries
;
surgery
;
Orthopedic Procedures
;
methods
;
Thumb
;
injuries
;
surgery
6.Xylanolytic and Ethanologenic Potential of Gut Associated Yeasts from Different Species of Termites from India
Snigdha TIWARI ; Rameshwar AVCHAR ; Riya ARORA ; Vikram LANJEKAR ; Prashant K. DHAKEPHALKAR ; Sumit S. DAGAR ; Abhishek BAGHELA
Mycobiology 2020;48(6):501-511
Xylophagous termites are capable of degrading lignocellulose by symbiotic gut microorganisms along with the host’s indigenous enzymes. Therefore, the termite gut might be a potential niche to obtain natural yeasts with celluloytic, xylanolytic and ethanologenic traits required for bioethanol production from lignocellulosic biomass. In this study, we cultured 79 yeasts from three different termites viz. Coptotermes heimi, Odontotermes javanicus and Odontotermes obesus. After suitable screening methods, we identified 53 yeasts, which belonged to 10 genera and 16 different species of both ascomycetous and basidiomycetous yeasts. Most yeasts in the present study represent their first-ever isolation from the termite gut. Representative strains of identified yeasts were evaluated for their cellulolytic, xylanolytic, and ethanologenic abilities. None of the isolates showed cellulase activity; 22 showed xylanolytic activity, while six produced substantial quantities of ethanol. Among xylanolytic cultures, Pseudozyma hubeiensis STAG 1.7 and Hannaella pagnoccae STAG 1.14 produced 1.31 and 1.17 IU of xylanase. Among ethanologenic yeasts, the strains belonging to genera Candida and Kodamaea produced high amount of ethanol. Overall, highest ethanol level of 4.42 g/L was produced by Candida tropicalis TS32 using 1% glucose, which increased up to 22.92 g/L at 35 °C, pH 4.5 with 5% glucose. Fermentation of rice straw hydrolysate gave 8.95 g/l of ethanol with a yield of 0.42 g/g using the strain TS32. Our study highlights the gut of wood-feeding termites as a potential source of diverse yeasts that would be useful in the production of xylanase and bioethanol.
7.Xylanolytic and Ethanologenic Potential of Gut Associated Yeasts from Different Species of Termites from India
Snigdha TIWARI ; Rameshwar AVCHAR ; Riya ARORA ; Vikram LANJEKAR ; Prashant K. DHAKEPHALKAR ; Sumit S. DAGAR ; Abhishek BAGHELA
Mycobiology 2020;48(6):501-511
Xylophagous termites are capable of degrading lignocellulose by symbiotic gut microorganisms along with the host’s indigenous enzymes. Therefore, the termite gut might be a potential niche to obtain natural yeasts with celluloytic, xylanolytic and ethanologenic traits required for bioethanol production from lignocellulosic biomass. In this study, we cultured 79 yeasts from three different termites viz. Coptotermes heimi, Odontotermes javanicus and Odontotermes obesus. After suitable screening methods, we identified 53 yeasts, which belonged to 10 genera and 16 different species of both ascomycetous and basidiomycetous yeasts. Most yeasts in the present study represent their first-ever isolation from the termite gut. Representative strains of identified yeasts were evaluated for their cellulolytic, xylanolytic, and ethanologenic abilities. None of the isolates showed cellulase activity; 22 showed xylanolytic activity, while six produced substantial quantities of ethanol. Among xylanolytic cultures, Pseudozyma hubeiensis STAG 1.7 and Hannaella pagnoccae STAG 1.14 produced 1.31 and 1.17 IU of xylanase. Among ethanologenic yeasts, the strains belonging to genera Candida and Kodamaea produced high amount of ethanol. Overall, highest ethanol level of 4.42 g/L was produced by Candida tropicalis TS32 using 1% glucose, which increased up to 22.92 g/L at 35 °C, pH 4.5 with 5% glucose. Fermentation of rice straw hydrolysate gave 8.95 g/l of ethanol with a yield of 0.42 g/g using the strain TS32. Our study highlights the gut of wood-feeding termites as a potential source of diverse yeasts that would be useful in the production of xylanase and bioethanol.