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Yamada HY, Kumar G, Zhang Y, Rubin E, Lightfoot S, Dai W, Rao CV. Systemic chromosome instability in Shugoshin-1 mice resulted in compromised glutathione pathway, activation of Wnt signaling and defects in immune system in the lung. Oncogenesis 2016; 5:e256. [PMID: 27526110 PMCID: PMC5007830 DOI: 10.1038/oncsis.2016.56] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 06/15/2016] [Accepted: 06/29/2016] [Indexed: 12/13/2022] Open
Abstract
Mitotic error-mediated chromosome instability (CIN) can lead to aneuploidy, chromothripsis, DNA damage and/or whole chromosome gain/loss. CIN may prompt rapid accumulation of mutations and genomic alterations. Thus, CIN can promote carcinogenesis. This CIN process results from a mutation in certain genes or environmental challenge such as smoking, and is highly prevalent in various cancers, including lung cancer. A better understanding of the effects of CIN on carcinogenesis will lead to novel methods for cancer prevention and treatment. Previously Shugoshin-1 (Sgo1(-/+)) mice, a transgenic mouse model of CIN, showed mild proneness to spontaneous lung and liver cancers. In this study, adoptive (T/B-cell based) immunity-deficient RAG1(-/-) Sgo1(-/+) double mutant mice developed lung adenocarcinomas more aggressively than did Sgo1(-/+) or RAG1(-/-) mice, suggesting immune system involvement in CIN-mediated lung carcinogenesis. To identify molecular causes of the lung adenocarcinoma, we used systems biology approach, comparative RNAseq, to RAG1(-/-) and RAG1(-/-) Sgo1(-/+). The comparative RNAseq data and follow-up analyses in the lungs of naive Sgo1(-/+) mice demonstrate that, (i) glutathione is depleted, making the tissue vulnerable to oxidative stress, (ii) spontaneous DNA damage is increased, (iii) oncogenic Wnt signaling is activated, (iv) both major branches of the immune system are weakened through misregulations in signal mediators such as CD80 and calreticulin and (v) the actin cytoskeleton is misregulated. Overall, the results show multi-faceted roles of CIN in lung carcinoma development in Sgo1(-/+) mice. Our model presents various effects of CIN and will help to identify potential targets to prevent CIN-driven carcinogenesis in the lung.
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Sivagurunathan P, Anburajan P, Kumar G, Bakonyi P, Nemestóthy N, Bélafi-Bakó K, Kim SH. Effects of anti-foaming agents on biohydrogen production. BIORESOURCE TECHNOLOGY 2016; 213:121-128. [PMID: 26995320 DOI: 10.1016/j.biortech.2016.02.121] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Revised: 02/25/2016] [Accepted: 02/26/2016] [Indexed: 06/05/2023]
Abstract
The effects of antifoaming agents on fermentative hydrogen production using galactose in batch and continuous operations were investigated. Batch hydrogen production assays with LS-303 (dimethylpolysiloxane), LG-109 (polyalkylene), LG-126 (polyoxyethylenealkylene), and LG-299 (polyether) showed that the doses and types of antifoaming agents played a significant role in hydrogen production. During batch tests, LS-303 at 100μL/L resulted in the maximum hydrogen production rate (HPR) and hydrogen yield (HY) of 2.5L/L-d and 1.08mol H2/mol galactoseadded, respectively. The following continuously stirred tank reactor operated at 12h HRT with LS-303 at 100μL/L showed a stable HPR and HY of 4.9L/L-d and 1.17mol H2/mol galactoseadded, respectively, which were higher than those found for the control reactor. Microbial community analysis supported the alterations in H2 generation under different operating conditions and the stimulatory impact of certain antifoaming chemicals on H2 production was demonstrated.
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Kumar G, Chaudhary N. Induced cytomictic variations and syncyte formation during microsporogenesis in Phaseolus vulgaris L. CYTOL GENET+ 2016. [DOI: 10.3103/s0095452716020109] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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229
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Teoh SW, Mimi O, Poonggothai SP, Liew SM, Kumar G. Pneumoperitoneum or Chilaiditi's sign. MALAYSIAN FAMILY PHYSICIAN : THE OFFICIAL JOURNAL OF THE ACADEMY OF FAMILY PHYSICIANS OF MALAYSIA 2016; 11:22-24. [PMID: 28461845 PMCID: PMC5405329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Chilaiditi's sign describes the incidental radiographic finding of the bowel positioned between the right diaphragm and the liver. This is often misdiagnosed as pneumoperitoneum or free air under the diaphragm, which may lead to unnecessary investigations or surgical procedures. Here, we report two incidental chest radiograph findings of air under the diaphragm in patients who were being screened for pulmonary tuberculosis. This case series highlights the importance of awareness of the diagnosis of Chilaiditi's sign to avoid unnecessary hospital referrals.
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Kumar G, Sivagurunathan P, Park JH, Park JH, Park HD, Yoon JJ, Kim SH. HRT dependent performance and bacterial community population of granular hydrogen-producing mixed cultures fed with galactose. BIORESOURCE TECHNOLOGY 2016; 206:188-194. [PMID: 26859326 DOI: 10.1016/j.biortech.2016.01.104] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2015] [Revised: 01/24/2016] [Accepted: 01/27/2016] [Indexed: 06/05/2023]
Abstract
The effects of hydraulic retention times (HRTs-6, 3 and 2 h) on H2 production, operational stability and bacterial population response in a continuously stirred tank reactor (CSTR) were evaluated using galactose. A peak hydrogen production rate (HPR) of 25.9 L H2/L-d was obtained at a 3 h HRT with an organic loading rate (OLR) of 120 g/L-d, while the maximum hydrogen yield (HY) of 2.21 mol H2/mol galactose was obtained at a 6 h HRT (60 g galactose/L-d). Butyrate was dominant and the lactate concentration increased as HRT decreased, which significantly affected the HY. Biomass concentration (VSS) decreased from 16 to 3g/L at a 2 h HRT, leading to failure. A 3 h HRT supported the favorable growth of Clostridium species, as indicated by an increase in their populations from 25.4% to 27%, while significantly reducing Bacilli populations from 61.6% to 54.2%, indicating that this was the optimal condition.
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Zhen G, Kobayashi T, Lu X, Kumar G, Xu K. Biomethane recovery from Egeria densa in a microbial electrolysis cell-assisted anaerobic system: Performance and stability assessment. CHEMOSPHERE 2016; 149:121-129. [PMID: 26855215 DOI: 10.1016/j.chemosphere.2016.01.101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 01/16/2016] [Accepted: 01/24/2016] [Indexed: 06/05/2023]
Abstract
Renewable energy recovery from submerged aquatic plants such as Egeria densa (E. densa) via continuous anaerobic digestion (AD) represents a bottleneck because of process instability. Here, a single-chamber membrane-free microbial electrolysis cell (MEC) equipped with a pair of Ti/RuO2 mesh electrodes (i.e. the combined MEC-AD system) was implemented at different applied voltages (0-1.0 V) to evaluate the potential effects of bioelectrochemical stimulation on methane production and process stability of E. densa fermentation. The application of MEC effectively stabilized E. densa fermentation and upgraded overall process performance, especially solid matters removal. E. densa AD process was operated steadily throughout bioelectrochemical process without any signs of imbalance. The solubilization-removal of solid matters and methane conversion efficiency gradually increased with increasing applied voltage, with an average methane yield of approximately 248.2 ± 21.0 mL L(-1) d(-1) at 1.0 V. Whereas, the stability of the process became worse immediately once the external power was removed, with weaken solid matters removal along with methane output, evidencing the favorable and indispensable role in maintaining process stability. The stabilizing effect was further quantitatively demonstrated by statistical analysis using standard deviation (SD), coefficient of variance (CV) and box-plots. The syntrophic and win-win interactions between fermenting bacteria and electroactive bacteria might have contributed to the improved process stability and bioenergy recovery.
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Valarmathi P, Kumar G, Robin S, Manonmani S, Dasgupta I, Rabindran R. Evaluation of virus resistance and agronomic performance of rice cultivar ASD 16 after transfer of transgene against Rice tungro bacilliform virus by backcross breeding. Virus Genes 2016; 52:521-9. [PMID: 26983604 DOI: 10.1007/s11262-016-1318-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2015] [Accepted: 03/07/2016] [Indexed: 11/28/2022]
Abstract
Severe losses of rice yield in south and southeast Asia are caused by Rice tungro disease (RTD) induced by mixed infection of Rice tungro bacilliform virus (RTBV) and Rice tungro spherical virus (RTSV). In order to develop transgene-based resistance against RTBV, one of its genes, ORF IV, was used to generate transgenic resistance based on RNA-interference in the easily transformed rice variety Pusa Basmati-1, and the transgene was subsequently introgressed to rice variety ASD 16, a variety popular in southern India, using transgene marker-assisted selection. Here, we report the evaluation of BC3F4 and BC3F5 generation rice plants for resistance to RTBV as well as for agronomic traits under glasshouse conditions. The BC3F4 and BC3F5 generation rice plants tested showed variable levels of resistance, which was manifested by an average of twofold amelioration in height reduction, 1.5-fold decrease in the reduction in chlorophyll content, and 100- to 10,000-fold reduction in the titers of RTBV, but no reduction of RTSV titers, in three backcrossed lines when compared with the ASD 16 parent. Agronomic traits of some of the backcrossed lines recorded substantial improvements when compared with the ASD 16 parental line after inoculation by RTBV and RTSV. This work represents an important step in transferring RTD resistance to a susceptible popular rice variety, hence enhancing its yield in areas threatened by the disease.
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Kumar G, Chaudhary N. INDUCED CYTOMICTIC VARIATIONS AND SYNCYTE FORMATION DURING MICROSPOROGENESIS IN PHASEOLUS VULGARIS L. TSITOLOGIIA I GENETIKA 2016; 50:50-57. [PMID: 27281925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The intercellular translocation of chromatin material along with other cytoplasmic contents among the proximate meiocytes lying in close contact with each other commonly referred as cytomixis was reported during microsporogenesis in Phaseolus vulgaris L., a member of the family Fabaceae. The phenomenon of cytomixis was observed at three administered doses of gamma rays viz. 100, 200, 300 Gy respectively in the diploid plants of Phaseolus vulgaris L. The gamma rays irradiated plants showed the characteristic feature of inter-meiocyte chromatin/chromosomes transmigration through various means.such as channel formation, beak formation or by direct adhesion between the PMC's (Pollen mother cells). The present study also reports the first instance of syncyte formation induced via cytomictic transmigration in Phaseolus vulgaris L. Though the frequency of syncyteformation was rather low yet these could play a significant role in plant evolution. It is speculated that syncyte enhances the ploidy level of plants by forming 2n gametes and may lead to the production ofpolyploid plants. The phenomenon of cytomixis shows a gradual inclination along with the increasing treatment doses of gamma rays. The preponderance of cytomixis was more frequent during meiosis I as compared to meiosis II. An interesting feature noticed during the present study was the channel formation among the microspores and fusion among the tetrads due to cell wall dissolution. The impact of this phenomenon is also visible on the development of post-meiotic products. The formation of heterosized pollen grains; a deviation from the normal pollen grains has also been reported. The production of gametes with unbalanced chromosomes is of utmost importance and should be given more attention in future studies as they possess the capability of inducing variations at the genomic level and can be further utilized in the improvement of germplasm.
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Srivastava N, Kumar G. Effect of waterlogging stress on meiotic course, tetrad formation and pollen fertility of Sesbania pea. CYTOL GENET+ 2016. [DOI: 10.3103/s0095452716010096] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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235
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Sharma SD, Kumar G, Bal J, Eweiss A. Endoscopic repair of cerebrospinal fluid rhinorrhoea. Eur Ann Otorhinolaryngol Head Neck Dis 2016; 133:187-90. [PMID: 26776882 DOI: 10.1016/j.anorl.2015.05.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Revised: 05/11/2015] [Accepted: 05/18/2015] [Indexed: 10/22/2022]
Abstract
GOAL The purpose of this review was to look at the success rate of transnasal endoscopic repair of CSF rhinorrhoea and the impact of patient factors, repair techniques and adjuvant treatment. MATERIAL AND METHODS A literature search was performed on PubMed, Medline and Cochrane Central databases, independently by two of the authors, of all studies reporting the outcomes of CSF rhinorrhoea repair, published until the 1st June 2014, using keywords Cerebrospinal fluid leak, CSF leak, CSF fistula, CSF leak or fistula repair, endoscopic sinus surgery or ESS complications. Sixty-seven papers were included for the review. RESULT The repair of CSF rhinorrhoea has rapidly evolved over the past 30 years. Prior to the advent of the endoscopic approach, craniotomy was used for repairs, which carried a variable success rate and morbidity. More recently, there have been several case series and reports that describe various endoscopic methods and materials for repair, with mean success rate of 90% (range: 60-100%). The most common site of CSF leak is the ethmoid roof/cribriform plate region. Traumatic CSF leak, in particular iatrogenic, is still the most common cause. Imaging with CT and MRI remains the gold standard for localisation of CSF leaks. The sphenoid sinus is the most common location for CSF leak repair failure. Lumbar drains and antibiotics are used as adjuvant therapy to endoscopic repair, but their benefits are not clear; intrathecal fluorescein can be used to aid location of CSF leak, but should be reserved for more complex cases. Further work into graft materials used and adjuvant treatment is needed to make any meaningful conclusions about their efficacy. CONCLUSION The literature demonstrates that endoscopic repair of CSF rhinorrhoea is safe and effective, with a very low complication rate. It has almost completely replaced the older open techniques.
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Srivastava N, Kumar G. EFFECT OF WATERLOGGING STRESS ON MEIOTIC COURSE, TETRAD FORMATION AND POLLEN FERTILITY OF SESBANIA PEA. TSITOLOGIIA I GENETIKA 2016; 50:36-39. [PMID: 27266183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Sesbania cannabina a multipurpose leguminous crop of family Fabaceae, is widely adaptable to adverse climatic conditions such as waterlogging, drought and high salinity. Flooding and water logging are very common phenomena and there may be possibility to become more serious alarms for environment, which is progressively deteriorated by human beings by their anthropogenic activities, polluting the atmosphere. Flooding provides a case of natural selection to the nature which selects the plants which are more adaptable to this condition and renders themselves to survive due to this tolerance or resistance behavior. Present study envisages the effect of waterlogging stress on chromosomal biology of Sesbania pea. To study the effect of waterlogging stress on microsporogensis of Sesbania cannabina, presoaked seeds were sown in experimental pots. Permanent waterlogged condition is created by shifting pots in water filled tanks. Cytological studies showed various types of chromosomal aberrations induced by waterlogging stress and reduction in pollen fertility was also encountered.
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Sivagurunathan P, Anburajan P, Kumar G, Kobayashi T, Xu KQ, Lee CY, Kim SH. High-rate hydrogen production from galactose in an upflow anaerobic sludge blanket reactor (UASBr). RSC Adv 2016. [DOI: 10.1039/c6ra09298e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
High-rate hydrogen production from galactose and rapid granule formation were achieved in a mesophilic (37 °C) upflow anaerobic sludge blank reactor (UASBr).
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Kumar G, Sivagurunathan P, Chen CC, Lin CY. Batch and continuous biogenic hydrogen fermentation of acid pretreated de-oiled jatropha waste (DJW) hydrolysate. RSC Adv 2016. [DOI: 10.1039/c6ra05628h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In an attempt to tailor the efficient hydrogen fermentation from hydrochloric acid-pretreated hydrolysate of de-oiled jatropha waste (DJW), batch tests were conducted to find the optimal hydrolysate concentration, temperature and pH.
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Chauhan S, Pathania L, Sharma K, Kumar G. Volumetric, acoustical and viscometric behavior of glycine and DL-alanine in aqueous furosemide solutions at different temperatures. J Mol Liq 2015. [DOI: 10.1016/j.molliq.2015.09.042] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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240
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Goswami J, Mallik S, Kumar G, Pal B, Das S. 276P Once-weekly high dose rate interstitial brachytherapy for carcinoma cervix is convenient, effective & well-tolerated. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv525.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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241
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Meshram H, Kumar G, Kumar A, Swetha A, Babu B. An Unexpected C–C Bond Cleavage of Acetophenones: Synthesis of Bis(heteroaryl)arylmethanes and Triarylmethanes via SeO2/Lanthanide Chloride Catalyzed Friedel–Crafts Arylation. Synlett 2015. [DOI: 10.1055/s-0035-1560808] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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242
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Meshram H, Kumar G, Kumar A. A Base-Free Multicomponent Domino Approach: One-Pot Synthesis of 2-Iminothiazolines via Oxy-Iodination of Arylacetylenes. Synlett 2015. [DOI: 10.1055/s-0035-1560502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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243
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Kumar G, Sivagurunathan P, Kobayashi T, Xu KQ, Kim SH. Simultaneous removal of 5-hydroxy methyl furfural (5-HMF) and hydrogen production from acid (H 2 SO 4 ) pretreated red-algal hydrolysate via hybrid immobilized cells. ALGAL RES 2015. [DOI: 10.1016/j.algal.2015.07.015] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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244
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Kim SH, KumarO R, Algarni H, Kumar G. Facile and Rapid Synthesis of ZnO Nanoparticles for Photovoltaic Device Application. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 2015; 15:6807-6812. [PMID: 26716248 DOI: 10.1166/jnn.2015.11597] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Well-crystalline ZnO nanoparticles were prepared through simple, facile and rapid solution combustion process and utilized as photoanode material for the fabrication of dye-sensitized solar cell. The detailed characterizations of the ZnO nanoparticles revealed that the crystalline product with wurtzite hexagonal phase was grown in high-density. The chemical composition analyzed through FTIR and EDS confirmed the purity of the ZnO nanoparticles. UV-vis and Raman spectral studies were applied for studying the optical and vibrational properties of as prepared ZnO nanoparticles, respectively. The fabricated dye-sensitized solar cell exhibited overall photo-to-electricity conversion efficiency (η) of 0.94%, open-circuit current (V(oc)) of 0.531 V, short circuit current (J(sc)) of 4.11 mA/cm2 and fill factor (FF) of 0.43.
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Umar A, Kumar R, Akhtar M, Kumar G, Kim S. Growth and properties of well-crystalline cerium oxide (CeO2) nanoflakes for environmental and sensor applications. J Colloid Interface Sci 2015; 454:61-8. [DOI: 10.1016/j.jcis.2015.04.055] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 04/20/2015] [Accepted: 04/26/2015] [Indexed: 11/28/2022]
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246
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Thi NBD, Kumar G, Lin CY. An overview of food waste management in developing countries: Current status and future perspective. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2015; 157:220-9. [PMID: 25910976 DOI: 10.1016/j.jenvman.2015.04.022] [Citation(s) in RCA: 111] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 04/11/2015] [Accepted: 04/14/2015] [Indexed: 05/27/2023]
Abstract
Food waste (FW) related issues in developing countries is currently considered to be a major threatening factor for sustainable development and FW management systems. Due to incomplete FW management systems, many developing countries are facing challenges, such as environmental and sanitary problems that are caused by FW. The difference in FW generation trends between developing countries and developed countries was reviewed in this work, which demonstrated that the effects of income level, population growth, and public participation in FW management are very important. Thus, this work aimed to provide an overview of recycling activities, related regulations, and current FW treatment technology in developing countries by following some case studies. Taiwan, has been suggested as being a successful case in terms of FW management, and is therefore a typical model for developing countries to follow. Finally, an integrative management system as a suitable model for FW management has been suggested for developing countries.
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Srinivasan N, Mudgal R, Kumar G, Chandra N, Sowdhamini R, Sandhya S. 161 Bridging the islands of protein families in sequence space using artificial sequences. J Biomol Struct Dyn 2015. [DOI: 10.1080/07391102.2015.1032798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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248
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Peng Y, Makarenko V, Nanduri J, Vasavda C, Raghuraman G, Yuan G, Gadalla M, Kumar G, Snyder S, Prabhakar N. Strain‐Dependent Variations in Carotid Body O
2
Sensing: Role of CO‐H
2
S Signaling. FASEB J 2015. [DOI: 10.1096/fasebj.29.1_supplement.682.7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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249
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Rajoo Y, Mahmud R, Xiang NR, Omar SF, Kumar G, Lim YA, Ahmad AF, Amir A, Nor ZM, Ngui R. Liver cirrhosis and splenomegaly associated with Schistosoma mansoni in a Sudanese woman in Malaysia: A case report. ASIAN PAC J TROP MED 2015; 8:334-6. [DOI: 10.1016/s1995-7645(14)60341-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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250
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Sharma SD, Kumar G, Hill CS, Kaddour H. Brachiocephalic artery haemorrhage during percutaneous tracheostomy. Ann R Coll Surg Engl 2015; 97:e15-7. [PMID: 25723674 DOI: 10.1308/003588414x14055925060118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Percutaneous tracheostomy was performed on a 69-year-old woman to facilitate weaning. Insertion of the size 7 tracheostomy tube resulted in profuse bleeding around the tracheostomy site. On inflation of the tracheostomy balloon, the bleeding stopped. Urgent computed tomography demonstrated the brachiocephalic artery was abnormally high and lying in an oblique fashion over the trachea, and the tracheostomy tube was displacing the trachea posteriorly. Surgical repair of the defect in the brachiocephalic artery was undertaken and a surgical tracheostomy was performed in theatre. This case raises important issues about the potential dangers of percutaneous tracheostomy in cases of abnormal anatomy. It also emphasises the importance of direct visualisation of the seeker needle using the endoscope. In cases where there is a suspicion of abnormal anatomy, it is safer to obtain preprocedural imaging or perform a surgical tracheostomy.
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