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Estravis Barcala M, van der Valk T, Chen Z, Funda T, Chaudhary R, Klingberg A, Fundova I, Suontama M, Hallingbäck H, Bernhardsson C, Nystedt B, Ingvarsson PK, Sherwood E, Street N, Gyllensten U, Nilsson O, Wu HX. Whole-genome resequencing facilitates the development of a 50K single nucleotide polymorphism genotyping array for Scots pine (Pinus sylvestris L.) and its transferability to other pine species. Plant J 2024; 117:944-955. [PMID: 37947292 DOI: 10.1111/tpj.16535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/25/2023] [Accepted: 10/26/2023] [Indexed: 11/12/2023]
Abstract
Scots pine (Pinus sylvestris L.) is one of the most widespread and economically important conifer species in the world. Applications like genomic selection and association studies, which could help accelerate breeding cycles, are challenging in Scots pine because of its large and repetitive genome. For this reason, genotyping tools for conifer species, and in particular for Scots pine, are commonly based on transcribed regions of the genome. In this article, we present the Axiom Psyl50K array, the first single nucleotide polymorphism (SNP) genotyping array for Scots pine based on whole-genome resequencing, that represents both genic and intergenic regions. This array was designed following a two-step procedure: first, 192 trees were sequenced, and a 430K SNP screening array was constructed. Then, 480 samples, including haploid megagametophytes, full-sib family trios, breeding population, and range-wide individuals from across Eurasia were genotyped with the screening array. The best 50K SNPs were selected based on quality, replicability, distribution across the draft genome assembly, balance between genic and intergenic regions, and genotype-environment and genotype-phenotype associations. Of the final 49 877 probes tiled in the array, 20 372 (40.84%) occur inside gene models, while the rest lie in intergenic regions. We also show that the Psyl50K array can yield enough high-confidence SNPs for genetic studies in pine species from North America and Eurasia. This new genotyping tool will be a valuable resource for high-throughput fundamental and applied research of Scots pine and other pine species.
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Affiliation(s)
- Maximiliano Estravis Barcala
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science Centre (UPSC), Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Tom van der Valk
- Department of Cell and Molecular Biology, National Bioinformatics Infrastructure Sweden, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Zhiqiang Chen
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science Centre (UPSC), Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Tomas Funda
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science Centre (UPSC), Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Rajiv Chaudhary
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science Centre (UPSC), Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Adam Klingberg
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science Centre (UPSC), Swedish University of Agricultural Sciences, Umeå, Sweden
- Skogforsk, Sävar, Uppsala, Sweden
| | - Irena Fundova
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science Centre (UPSC), Swedish University of Agricultural Sciences, Umeå, Sweden
| | | | | | - Carolina Bernhardsson
- Department of Organismal Biology, Human Evolution, Uppsala University, Uppsala, Sweden
- Department of Plant Biology, Linnean Centre for Plant Biology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Björn Nystedt
- Department of Cell and Molecular Biology, National Bioinformatics Infrastructure Sweden, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Pär K Ingvarsson
- Department of Plant Biology, Linnean Centre for Plant Biology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Ellen Sherwood
- Department of Biochemistry and Biophysics, Science for Life Laboratory, Stockholm University, Stockholm, Sweden
- Department of Gene Technology, Science for Life Laboratory, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Nathaniel Street
- Department of Plant Physiology, Umeå Plant Science Centre (UPSC), Umeå University, Umeå, Sweden
| | - Ulf Gyllensten
- Department of Immunology, Genetics, and Pathology, Biomedical Center, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Ove Nilsson
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science Centre (UPSC), Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Harry X Wu
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science Centre (UPSC), Swedish University of Agricultural Sciences, Umeå, Sweden
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Hall J, Wang K, Lui KP, Darawsheh R, Shumway JW, Carey LA, Hayes KR, Lee CB, Moschos S, Sengupta S, Chaudhary R, Yogendran L, Struve TD, Vatner RE, Pater LE, Breneman JC, Weiner AA, Shen C. Safety and Efficacy of Stereotactic Radiosurgery with Concurrent Targeted Systemic Therapy for Brain Metastases. Int J Radiat Oncol Biol Phys 2023; 117:e107. [PMID: 37784639 DOI: 10.1016/j.ijrobp.2023.06.882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Data describing the safety and efficacy of central nervous system (CNS)-active targeted systemic therapies in combination with stereotactic radiosurgery (SRS, 1 fraction) and/or radiotherapy (SRT, 3-5 fractions) for brain metastases are emerging but limited. We report rates of local and intracranial failure and radiation necrosis in patients receiving CNS-active targeted systemic therapy and SRS/SRT. MATERIALS/METHODS We retrospectively identified patients with intact brain metastases at two institutions from 2009-2022 who were treated with SRS/SRT and CNS-active targeted systemic therapy in any sequence. Patients were followed for a minimum of 3 months after SRS/SRT with brain MRI. Patients typically stopped the targeted agent 2-4 days prior to radiation and resumed 2-4 days after. Targeted therapies included inhibitors of ALK/ROS1 (Alectinib, Ceritinib, Crizotinib, Lorlatinib), EGFR (Afatinib, Erlotinib, Gefitinib, Osimertinib), BRAF (Dabrafenib, Encorafenib, Vemurafenib), MEK (Binimetinib, Trametinib), CDK 4/6 (Abemaciclib, Palbociclib, Ribociclib), HER2 (Afatinib, Lapatinib, Neratinib, Pertuzumab, Trastuzumab, T-DM1, T-DXd, Tucatinib), KRAS (Adagrasib and Sotorasib), PARP (Niraparib, Olaparib), VEGF(R) (Axitinib, Bevacizumab, Ramucirumab), and less-selective tyrosine (receptor) kinase inhibitors (Bosutinib, Brigatinib, Entrectinib, Lenvatinib, Pazopanib, Sorafenib, Sunitinib). Local failure (LF) and radiation necrosis were determined radiographically with clinical impression (grade 2 (symptomatic) or higher (G2+)) and compared between different systemic agents. RESULTS The study included 95 patients with 310 metastases (SRS 246, SRT 64 metastases). Most common primary histologies were non-small cell lung cancer (36% 34/95), breast cancer (28% 27/95), and melanoma (16% 15/95). Overall survival at 1 and 2 years was 80% (76/95) and 55% (52/95), respectively. Median follow-up was 16.6 (range 3-91) months. Median tumor size was 7mm (range 1-75mm). Median number of brain metastases per patient was 2.5 (range 1-12). The G2+ radiation necrosis rate was 5.8% (18/310) while the LF rate was 9.7% (30/310) per metastasis. There was no significant difference in G2+ radiation necrosis by class of targeted therapy. Sixty-two percent (59/95) of patients experienced distant intracranial failure. Median intracranial progression free survival (PFS) was 8.0 (range 0.4-61.4) months. CONCLUSION Although heterogeneous, patients treated with SRS/SRT and ongoing CNS-active targeted systemic therapies have on average >6 month intracranial PFS and little evidence of significant toxicity. We observed <6% G2+ radiation necrosis for this cohort, and no particular class of agent was associated with a significantly higher rate of G2+ radiation necrosis.
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Affiliation(s)
- J Hall
- Department of Radiation Oncology, University of North Carolina, Chapel Hill, NC
| | - K Wang
- Department of Radiation Oncology, University of Cincinnati, Cincinnati, OH
| | - K P Lui
- Department of Radiation Oncology, University of Cincinnati, Cincinnati, OH
| | - R Darawsheh
- University of North Carolina, Chapel Hill, NC
| | - J W Shumway
- Department of Radiation Oncology, University of North Carolina, Chapel Hill, NC
| | - L A Carey
- Division of Oncology, University of North Carolina, Chapel Hill, NC
| | - K Reeder Hayes
- Division of Oncology, University of North Carolina, Chapel Hill, NC
| | - C B Lee
- Division of Oncology, University of North Carolina, Chapel Hill, NC
| | - S Moschos
- Division of Oncology, University of North Carolina, Chapel Hill, NC
| | - S Sengupta
- Department of Neurology, University of Cincinnati, Cincinnati, OH
| | - R Chaudhary
- Division of Oncology, University of Cincinnati, Cincinnati, OH
| | - L Yogendran
- Department of Neurology, University of Cincinnati, Cincinnati, OH
| | - T D Struve
- Department of Radiation Oncology, University of Cincinnati, Cincinnati, OH
| | - R E Vatner
- Department of Radiation Oncology, University of Cincinnati, Cincinnati, OH
| | - L E Pater
- Department of Radiation Oncology, University of Cincinnati, Cincinnati, OH
| | - J C Breneman
- Department of Radiation Oncology, University of Cincinnati, Cincinnati, OH
| | - A A Weiner
- Department of Radiation Oncology, University of North Carolina, Chapel Hill, NC
| | - C Shen
- Department of Radiation Oncology, University of North Carolina, Chapel Hill, NC
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MacDonald T, Sackett JJ, Gaskill-Shipley M, Rao R, Chaudhary R, Curry R, Forbes J, Andaluz N, Zuccarello M, Yogendran L, Sengupta S, Struve Iii TD, Vatner RE, Pater LE, Mascia AE, Breneman JC, Wang K. Neurologic Events and Outcomes in Patients Receiving Proton and Photon Reirradiation for High Grade Non-Codeleted Gliomas. Int J Radiat Oncol Biol Phys 2023; 117:e133-e134. [PMID: 37784697 DOI: 10.1016/j.ijrobp.2023.06.936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Patients undergoing reirradiation (ReRT) for high grade glioma are at risk for tumor progression, pseudoprogression, and radiation necrosis. We investigated factors associated with neurologic events and disease control after re-irradiation with protons and photons at a single academic center. MATERIALS/METHODS We reviewed records and MRIs of patients receiving scanning beam proton (since center opening in 2016) and photon (since 2015) reirradiation in ≥10 fractions for grade 3 anaplastic astrocytoma (AA) and grade 4 glioblastoma (GBM), excluding 1p19q co-deleted oligodendrogliomas and extensive multifocal/leptomeningeal disease. The primary endpoint was time from ReRT to ≥ grade 2 pseudoprogression or radiation necrosis (PsP/RN, grade 2: moderate symptoms requiring outpatient steroids/bevacizumab, grade 3: severe symptoms leading to admission or surgical intervention). Dose was converted to EQD2 using a/b = 3. Cox proportional hazards model was used to calculate survival and time to PsP/RN. RESULTS A total of 53 patients were included (26 protons, 27 photons, median KPS 80). Patients receiving protons had more favorable features. Compared to the photons, the proton group was younger (48 vs. 58) and more likely to have AA (46% vs. 22%) and resection within 3 months (42% vs 26%). The proton group also had a longer interval from prior RT (57 vs. 39 months) and were less likely to receive bevacizumab at reRT (15% vs. 59%). CTV was 130 cc for protons vs 99 cc for photons, and most had active disease at time of ReRT identified on planning MRI (76% protons, 85% photons). Median OS was 10.5 months (14.1 months protons, 8.1 months photons), with time from initial RT the only significant factor on multivariate analysis. Median PFS was 9.4 months (9.8 months protons, 6.2 months photons). 9 patients (18%) had ≥ grade 3 PsP/RN (8 proton, 1 photon) and 21 patients (41%) had ≥ grade 2 PsP/RN (16 proton, 5 photon). Grade 3 events included 1 seizure (photon group), 1 hemorrhage, 1 thalamic stroke, 1 shunt placement, 1 re-resection, and PSP4 4 PsP/RN requiring admission. Protons were associated shorter time to ≥ grade 2 PsP/RN (4 months vs. not reached, p = 0.027). When accounting for bevacizumab use at time of reRT, the association between protons and PsP/RN lost significance but there remained a trend (grade 2, p = 0.095, HR 2.4; grade 3, p = 0.105, HR 5.8). CTV, MGMT status, EQD2, and interval from prior RT were not associated with PsP/RN. CONCLUSION High grade neurologic events were common in patients with predominantly active, unresected high grade gliomas receiving ReRT. Though ascertainment and survival bias are significant limitations, pseudoprogression and necrosis appeared to be more prominent in patients receiving protons. These results contribute to ongoing efforts to both optimize ReRT for high grade glioma and investigate biologic effects of proton therapy.
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Affiliation(s)
- T MacDonald
- Department of Radiation Oncology, University of Cincinnati, Cincinnati, OH
| | - J J Sackett
- Department of Radiation Oncology, University of Cincinnati, Cincinnati, OH
| | | | - R Rao
- Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - R Chaudhary
- Division of Oncology, University of Cincinnati, Cincinnati, OH
| | - R Curry
- CTI Clinical Trial and Consulting Services, Covington, KY
| | - J Forbes
- Department of Neurosurgery, University of Cincinnati, Cincinnati, OH
| | - N Andaluz
- Department of Neurosurgery, University of Cincinnati, Cincinnati, OH
| | - M Zuccarello
- Department of Neurosurgery, University of Cincinnati, Cincinnati, OH
| | - L Yogendran
- Department of Neurology, University of Cincinnati, Cincinnati, OH
| | - S Sengupta
- Department of Neurology, University of Cincinnati, Cincinnati, OH
| | - T D Struve Iii
- Department of Radiation Oncology, University of Cincinnati, Cincinnati, OH
| | - R E Vatner
- Department of Radiation Oncology, University of Cincinnati, Cincinnati, OH
| | - L E Pater
- Department of Radiation Oncology, University of Cincinnati, Cincinnati, OH
| | - A E Mascia
- Department of Radiation Oncology, University of Cincinnati, Cincinnati, OH
| | - J C Breneman
- Department of Radiation Oncology, University of Cincinnati, Cincinnati, OH
| | - K Wang
- Department of Radiation Oncology, University of Cincinnati, Cincinnati, OH
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Ghosh S, Kumar S, Chaudhary R, Guha P. High-Risk Human Papillomavirus Infection in Squamous Cell Carcinoma of the Larynx: A Study From a Tertiary Care Center in North India. Cureus 2023; 15:e34760. [PMID: 36909048 PMCID: PMC10005857 DOI: 10.7759/cureus.34760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/08/2023] [Indexed: 02/10/2023] Open
Abstract
Background Human papillomavirus (HPV) 16/18 infection has been considered as an important etiological factor for laryngeal carcinoma. Considering its impact on prognosis, it is important to understand the true prevalence of HPV-associated laryngeal squamous cell carcinoma (LSCC) in the northeast region of India. Materials and methods A prospective observational study was conducted among patients with laryngeal squamous cell carcinoma in the department of otolaryngology of King George's Medical University (KGMU), Lucknow. Results In this study, the total number of cases was 62. HPV 16/18 positivity was higher (p=0.02) among the age group 31-40 years (40%) as compared to above 50 years (3.3%). HPV positivity was higher among females (50%) as compared to males (12.5%). Out of 34 tobacco smokers, HPV positivity was seen in 20.6% as compared to no positivity among patients without any history of addiction. HPV positivity was found in 19.6% of supraglottic cancer and no positivity among glottic cancer. HPV positivity was higher among the T1 stage of supraglottic carcinoma (40%) as compared to T3 (17.4%). In glottic cases, HPV positivity was nil in all T stages. Conclusion The association of tumor HPV status with laryngeal squamous cell carcinoma in females and young patients (<50 years) observed in our study is consistent with prior studies, and this reflects that HPV status should be considered in the design or analysis for the treatment of laryngeal cancer. We tried to highlight the importance of diagnosing HPV-positive laryngeal squamous cell carcinoma at early stages of the disease and also added information about the prevalence of HPV-positive LSCC in this zone of the country. We have observed that laryngeal carcinoma from tobacco smokers contains transcriptionally active HPV and hence may act as a risk factor or act synergistically with HPV infection. Further studies with larger sample size are needed to clearly establish the association of HPV in laryngeal squamous cell carcinoma and its impact on disease prognosis.
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Affiliation(s)
- Shreshtha Ghosh
- Pathology, Kalyan Singh Super Speciality Cancer Institute, Lucknow, IND
| | - Sanjeev Kumar
- Otolaryngology, Rani Durgavati Medical College (RDMC), Banda, IND
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Chaudhary R, Venkata Sairam M. OC-030 EARLY OUTCOMES OF ROBOTIC TAPP HERNIA REPAIR FOR INGUINAL HERNIA: A SINGLE SURGEON'S EXPERIENCE. Br J Surg 2022. [DOI: 10.1093/bjs/znac308.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Aim
The aim of this study was to evaluate the early outcomes of robotic TAPP (trans abdominal pre-peritoneal) inguinal hernia repair in a tertiary hospital.
Material & methods
This is a retrospective analysis of patients who underwent robotic TAPP by a single surgeon from November 2019 to May 2022. Three-arm, 4-port technique of robotic TAPP was performed. The patient cart was advanced depending upon laterality of the hernia. Three ports were placed in a linear fashion at the level of umbilicus, and the fourth port or assistant port was taken on the side opposite to the cart, triangulated from the umbilical and lateral ports.
Results
37 male patients were included, of which, 16 had unilateral hernias and 11 had bilateral hernias. Mean age was 46.2 (SD 16.5) years. One patient had a recurrent groin hernia after open repair. Mean operating time was 137.6 (SD 33.2) minutes. Operating time for the first ten cases was 158.2 (SD 25.1) min, and that of the last ten cases was 127 (SD 42.2) minutes, showing a steady decrease over time. One patient had intraoperative injury of the vas deferens, which was repaired. Mean hospital stay was 1.4 (SD 0.8) days. One patient had seroma. None of the patients had recurrence or mesh infection.
Conclusions
Robotic TAPP is a safe and effective procedure for the repair of inguinal hernias. Placing of assistant port near the umbilicus offers ergonomic advantage over linear port placement.
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Affiliation(s)
- R Chaudhary
- General Surgery, All India Institute of Medical Sciences , Jodhpur, Jodhpur , India
| | - M Venkata Sairam
- General Surgery, All India Institute of Medical Sciences , Jodhpur, Jodhpur , India
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Chaudhary R, Bhatta S, Singh A, Pradhan M, Moktan B, Duwal S, Pandit R. A Comparative Study of Rapid SARS-Cov-2 Antigen Detection Assay against RT-PCR Assay for Diagnosis of COVID-19 in a Tertiary Hospital of Kathmandu. Kathmandu Univ Med J (KUMJ) 2022; 20:337-341. [PMID: 37042376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2023]
Abstract
Background The Coronavirus disease 2019 (COVID-19) pandemic caused by the severe acute respiratory syndrome coronavirus (SARS-CoV-2) has spread worldwide since its first recorded case in the city of Wuhan, China, in December 2019. SARS-CoV-2 infection causes asymptomatic to sever pneumonia. Severe cases may develop acute respiratory disease symdrome (ARDS), with an average mortality rate of 6.9%. Real Time Reverse Transcriptase Polymerase Chain Reaction (rRT-PCR) assay is the current reference standard laboratory method for the diagnosis of SARS-CoV-2 infection. However, it takes around 6-8 hours to get the result and is time consuming. Therefore, rapid and accurate tests for SARS-CoV-2 screening are essential to expedite disease prevention and control. Lateral flow immunoassay using monoclonal anti SARS-CoV-2 antibodies which target for SARS-CoV-2 antigen can be complimentary screening test if their accuracy were comparable to that of the real time reverse transcriptionpolymerase chain reaction (RT-PCR) assay. Objective To find the sensitivity and specificity of a rapid antigentest kit in comparison to reverse transcription-polymerase chain reaction (RT-PCR). Method A cross-sectional hospital based study was carried out at Shree Birendra Army Hospital, Kathmandu for a period of four months. Result Our finding shows sensitivity and specificity of rapid diagnostic tests (RDT) Ag kit as 60.6% and 96.4% respectively. Positive and negative predictive value was 83.7% and 89.0%. Likewise, positive and negative likelihood ratio was 17.0 and 0.4. The overall accuracy of the antigen kit was 88.1% in comparison to reverse transcriptionpolymerase chain reaction (RT-PCR) as the gold standard. Conclusion Our study concluded the use of rapid antigen kit is mainly useful for screening purposes.
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Affiliation(s)
- R Chaudhary
- Department of Microbiology, Nepalese Army Institute of Health Sciences(NAIHS), Bhandharkhal, Kathmandu, Nepal
| | - S Bhatta
- Department of Microbiology, Nepalese Army Institute of Health Sciences(NAIHS), Bhandharkhal, Kathmandu, Nepal
| | - A Singh
- Department of Microbiology, Nepalese Army Institute of Health Sciences(NAIHS), Bhandharkhal, Kathmandu, Nepal
| | - M Pradhan
- Department of Microbiology, Nepalese Army Institute of Health Sciences(NAIHS), Bhandharkhal, Kathmandu, Nepal
| | - B Moktan
- Department of Laboratory Medicine, Shree Birendra Army Hospital, Kathmandu, Nepal
| | - S Duwal
- Department of Hygiene and Sanitation, Shree Birendra Army Hospital, Kathmandu, Nepal
| | - R Pandit
- National Public Health Laboratory, Department of Health Services, Ministry of Health and Population, Kathmandu, Nepal. and Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Yadav K, Kumar N, Chaudhary R. Effect of synthetic and aromatic amine antioxidants on oxidation stability, performance, and emission analysis of waste cooking oil biodiesel. Environ Sci Pollut Res Int 2022; 29:27939-27953. [PMID: 34984615 DOI: 10.1007/s11356-021-18086-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 12/09/2021] [Indexed: 06/14/2023]
Abstract
In the present study, an attempt was made to improve the oxidation stability of biodiesel by adding antioxidants to waste cooking oil biodiesel, and their impact on performance and emissions was analyzed. Two types of antioxidants were chosen for the analysis: an aromatic amine antioxidant, diphenylamine (DPA), and synthetic oxidants, tert-butylhydroxyquinone (TBHQ) and pyrogallol (PY). All the antioxidants were added to the biodiesel at doses of 200 ppm and 500 ppm to evaluate their effect. The oxidation stability was found as per the ASTM standard by mixing 500 ppm antioxidants for all three antioxidant-treated biodiesel blends. DPA yielded similar results as TBHQ, although PY had a better oxidation stability according to the Rancimat test. Gas chromatography and mass chromatography were also performed on the neat biodiesel. Performance and emission tests were performed on the antioxidant-treated biodiesel blends and diesel. The brake thermal efficiency of the tested fuel increased by 9.8%, 6.9%, and 15.88% when the DPA, TBHQ, and PY antioxidants were added to the test fuel compared to that of the test fuel without added antioxidant. The brake specific energy consumption of the test fuel decreased by 9.05% with DPA, 7.03% with TBHQ, and 14.08% with PY compared to that of the test fuel without antioxidant. The NOx emissions of the antioxidant-treated test fuels were reduced by 14.65% with DPA, 11.22% with TBHQ, and 23.10% with PY compared to those of the test fuel without antioxidants. Additionally, the aromatic amine antioxidant (DPA) was found to be effective in enhancing the performance and lowering the exhaust emissions compared to diesel for unmodified diesel engines.
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Affiliation(s)
- Khushbu Yadav
- Mechanical Engineering Department, Amity University, Noida, Uttar Pradesh, 201301, India.
- Centre for Advanced Studies and Research in Automobile Engineering, Delhi Technological University, Delhi, 110042, India.
| | - Naveen Kumar
- Centre for Advanced Studies and Research in Automobile Engineering, Delhi Technological University, Delhi, 110042, India
| | - Rajiv Chaudhary
- Department of Mechanical Engineering, Delhi Technological University, Delhi, 110042, India
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Garfield H, Westgate B, Chaudhary R, King M, O’Curry S, Archibald S. Parental and staff experiences of restricted parental presence on a Neonatal Intensive Care Unit during COVID-19. Acta Paediatr 2021; 110:3308-3314. [PMID: 34435377 PMCID: PMC8652665 DOI: 10.1111/apa.16085] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 08/16/2021] [Accepted: 08/24/2021] [Indexed: 11/29/2022]
Abstract
Aim The COVID‐19 pandemic had a significant impact on parental presence in the Neonatal Intensive Care Unit (NICU) during the first wave. The NICU team at the Rosie Hospital, Cambridge, endeavoured to explore the impact on parent and staff experiences of supporting parents throughout the period when visiting was restricted, between 13th August and 11th September 2020. Methods Bespoke surveys were designed following the first lockdown to gather information on the impact on staff and parents. The questions were developed in the context of initial observations and conversations with staff and parents. Results The findings of this study have illustrated the extent of the restrictions on parental wellbeing and mood, with the restrictions having had an adverse effect on these. In addition, the findings illustrate the adverse effect that the parents reported due to the restricted presence in terms of their babies’ wellbeing, parent‐infant bonding, partners’ wellbeing, parental confidence, the ability to breastfeed confidently and parents’ access to the medical teams. Conclusion The findings of this study have a number of clinical implications for parents and staff. Namely, the data supported the decision not to close NICU again during the second and third waves.
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Affiliation(s)
- Harriet Garfield
- Psychological Medicine for Children Young People and Families Addenbrooke’s Hospital Cambridgeshire and Peterborough NHS Foundation Trust Cambridge UK
| | - Briony Westgate
- Psychological Medicine for Children Young People and Families Addenbrooke’s Hospital Cambridgeshire and Peterborough NHS Foundation Trust Cambridge UK
| | | | - Mary King
- NICU The Rosie, Addenbrooke's Hospital Cambridge UK
| | - Sara O’Curry
- Psychological Medicine for Children Young People and Families Addenbrooke’s Hospital Cambridgeshire and Peterborough NHS Foundation Trust Cambridge UK
| | - Sarah‐Jane Archibald
- Psychological Medicine for Children Young People and Families Addenbrooke’s Hospital Cambridgeshire and Peterborough NHS Foundation Trust Cambridge UK
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Govindagoudar MB, Singh PK, Chaudhry D, Chaudhary R, Sachdeva A, Dhankhar S, Tyagi D. Burden of Silicosis among stone crushing workers in India. Occup Med (Lond) 2021; 72:366-371. [PMID: 34729596 DOI: 10.1093/occmed/kqab146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND In North India, the mining industry is disorganized and profit-driven. It predisposes its workers towards the development of silicosis. Haryana, a major North Indian state, has developed a compensation-rehabilitation policy for mining workers. AIMS This study is the review of the policy's functioning and limitation from the first 4 years of implementation. METHOD The labour department does surveillance of workers in the mining industry. All suspected cases of silicosis are evaluated by a multidisciplinary team. Based on the final diagnosis, the compensation is decided. RESULT Nearly 5000 workers were screened, and 729 appeared before the medical board. Of these 729, 465 were having silicosis, and their data are presented here (data of 7 patients were missing). All workers were males. The mean age was 44.54 ± 9.6 years, and the mean exposure (work experience) was 17.25 ± 6.7 years. Most of the workers were between the age of 40 and 50 years and had exposure for 10-20 years. Chest radiography examination showed that progressive massive fibrosis (large size type C opacities) was the most common type of presentation (23%). Smaller opacities (p, q, r and s, t, u) were combined for further analysis, given their similar prognostic significance. It was found that age and experience both had a linear and significant correlation with the severity of lung involvement. CONCLUSIONS Nearly a quarter of subjects were suffering from the worst type of lung involvement at screening itself. The policy has laid a foundation for the welfare of workers, but there is still a long way to go.
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Affiliation(s)
- M B Govindagoudar
- Department of Pulmonary & Critical Care Medicine, Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana, India
| | - P K Singh
- Department of Pulmonary & Critical Care Medicine, Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana, India
| | - D Chaudhry
- Department of Pulmonary & Critical Care Medicine, Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana, India
| | - R Chaudhary
- Department of Labour, Industrial Health, Rohtak, Haryana, India
| | - A Sachdeva
- ESI Health Care Hospital, Faridabad, Haryana, India
| | - S Dhankhar
- Civil Hospital Gurugram, Gurugram, Haryana, India
| | - D Tyagi
- Department of Pulmonary & Critical Care Medicine, Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana, India
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Kadesh AD, Baban S, Chaudhary R, Shi J, Ahluwalia J, Lui A, Daly G, Reddy S, Giles DL, White MP, Grimes CL. Variation of Chargemaster Price Listings for Hysterectomy Procedures across Five States. J Minim Invasive Gynecol 2021. [DOI: 10.1016/j.jmig.2021.09.459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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11
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Bhurtel R, Yadav U, Chaudhary R, Shah S, Poudel P, Pokhrel RP, Sharma S. Effect of Breastfeeding on Relieving Pain during Immunization in Infant. Kathmandu Univ Med J (KUMJ) 2020; 18:376-380. [PMID: 34165095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Background Advantages due to immunization are numerous and cannot be avoided but at the same time pain inflicted on babies needs to be addressed when possible. Pain associated with immunization injections has often been overlooked when remedies are available. Objective To find out the effect of breastfeeding on relieving pain during immunization injection in infants. Method An experimental study was conducted at Immunization clinic of B.P. Koirala Institute of Health Sciences (BPKIHS). Total 124 subjects were divided randomly into two groups. Experimental subjects were allowed to breastfeed for 5-10 minutes before immunization while control group was immunized without breastfeeding. Interview Questionnaire was used to obtain demographic variables and measurements were obtained. Measures of pain was recorded using duration of cry and Modified Behavior Pain Scale, by Taddio et al. Data was analyzed by using SPSS 20.0 where variables were assessed with frequency tables, Pearson's Chi-Square test, independent t test and Mann Whitney U test. Result The mean pain score in experimental group was 7.10 and in control group 7.56 which was statistically significant (p=0.001). The median duration of cry was significantly shorter in experimental group i.e. 25 seconds (IQR: 20-30) than control group 42.5 seconds (IQR: 30-61.5) (p < 0.001). Conclusion Breastfeeding before immunization is effective in reducing pain in infants.
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Affiliation(s)
- R Bhurtel
- Department of Nursing, College of Medical Sciences Teaching Hospital, Bharatpur, Chitwan
| | - U Yadav
- Department of Child Health Nursing, College of Nursing, B.P. Koirala Institute of Health Sciences, Dharan
| | - R Chaudhary
- Department of Child Health Nursing, College of Nursing, B.P. Koirala Institute of Health Sciences, Dharan
| | - S Shah
- Department of Nursing, Norvic Institute of Nursing Education, Kathmandu
| | - P Poudel
- Department of Pediatric and Adolescent Medicine, B.P. Koirala Institute of Health Sciences, Dharan
| | - R P Pokhrel
- Department of Pediatrics, College of Medical Sciences Teaching Hospital, Bharatpur, Chitwan
| | - S Sharma
- School of Nursing, Faculty of Health, Queensland University of Technology, Queensland, Australia
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Elfstrand M, Baison J, Lundén K, Zhou L, Vos I, Capador HD, Åslund MS, Chen Z, Chaudhary R, Olson Å, Wu HX, Karlsson B, Stenlid J, García-Gil MR. Association genetics identifies a specifically regulated Norway spruce laccase gene, PaLAC5, linked to Heterobasidion parviporum resistance. Plant Cell Environ 2020; 43:1779-1791. [PMID: 32276288 DOI: 10.1111/pce.13768] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 03/21/2020] [Accepted: 03/28/2020] [Indexed: 06/11/2023]
Abstract
It is important to improve the understanding of the interactions between the trees and pathogens and integrate this knowledge about disease resistance into tree breeding programs. The conifer Norway spruce (Picea abies) is an important species for the forest industry in Europe. Its major pathogen is Heterobasidion parviporum, causing stem and root rot. In this study, we identified 11 Norway spruce QTLs (Quantitative trait loci) that correlate with variation in resistance to H. parviporum in a population of 466 trees by association genetics. Individual QTLs explained between 2.1 and 5.2% of the phenotypic variance. The expression of candidate genes associated with the QTLs was analysed in silico and in response to H. parviporum hypothesizing that (a) candidate genes linked to control of fungal sapwood growth are more commonly expressed in sapwood, and; (b) candidate genes associated with induced defences are respond to H. parviporum inoculation. The Norway spruce laccase PaLAC5 associated with control of lesion length development is likely to be involved in the induced defences. Expression analyses showed that PaLAC5 responds specifically and strongly in close proximity to the H. parviporum inoculation. Thus, PaLAC5 may be associated with the lignosuberized boundary zone formation in bark adjacent to the inoculation site.
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Affiliation(s)
- Malin Elfstrand
- Uppsala Biocentre, Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - John Baison
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Karl Lundén
- Uppsala Biocentre, Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Linghua Zhou
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, Sweden
| | | | - Hernan Dario Capador
- Uppsala Biocentre, Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Matilda Stein Åslund
- Uppsala Biocentre, Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Zhiqiang Chen
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Rajiv Chaudhary
- Uppsala Biocentre, Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Åke Olson
- Uppsala Biocentre, Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Harry X Wu
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, Sweden
| | | | - Jan Stenlid
- Uppsala Biocentre, Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - María Rosario García-Gil
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, Sweden
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Sarkar S, Rapista N, Rout A, Chaudhary R. BRADYCARDIA RENAL FAILURE AV NODAL BLOCKADE SHOCK HYPERKALEMIA (BRASH) SYNDROME: A DEADLY COMBINATION OF AV NODAL BLOCKERS IN THE SETTING OF HYPERTENSIVE CRISIS. Chest 2020. [DOI: 10.1016/j.chest.2020.05.149] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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14
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Chung C, de la Iglesia J, Wang X, Song F, Chaudhary R, Masannat J, Conejo-Garcia J, Hernandez-Prera J, Slebos R. Tobacco smoking is associated with the immune suppressive microenvironment in head and neck squamous cell carcinoma (HNSCC). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz268.035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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15
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Woodhouse C, Ward T, Gaskill-Shipley M, Chaudhary R. Feasibility of a modified Atkins diet in glioma patients during radiation and its effect on radiation sensitization. ACTA ACUST UNITED AC 2019; 26:e433-e438. [PMID: 31548811 DOI: 10.3747/co.26.4889] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Background Gliomas are the most dreaded primary brain tumour because of their dismal cure rates. Ketogenic-type diets (kds) are high-fat, low-protein, and low-carbohydrate diets; the modified Atkins diet (mad) is a less-stringent version of a kd that still generates serum ketones in patients. The purpose of the present study was to retrospectively examine the feasibility of attaining ketosis and the safety of the mad in patients undergoing radiation and chemotherapy treatment for glioma. The rate of pseudoprogression (psp) after treatment was also assessed as a marker of radiation sensitization. To our knowledge, this dataset is the largest published relating to patients with glioma undergoing kd during radiation and chemotherapy. Methods We retrospectively studied 29 patients with grades ii-iv astrocytoma following the mad during standard radiation and chemotherapy. Feasibility of attaining ketosis was assessed though levels of beta hydroxybutyrate in blood. Pre- and post-radiation magnetic resonance images were evaluated for psp by a neuroradiologist blinded to patient data. Results In the 29 patients who started the mad during radiation, ketosis was achieved in all 29 (100%). No serious adverse events occurred secondary to the mad. Of those 29 patients, 19 had glioblastoma multiforme. Of the latter 19 patients, 11 (58%) showed psp after mad and radiation and temozolomide therapy. Conclusions A modified Atkins diet is feasible and safe for glioma patients during radiation and chemotherapy treatment. The mad and resulting ketosis could play a role as a radiation sensitizer.
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Affiliation(s)
- C Woodhouse
- University of Cincinnati Medical Center, Cincinnati, OH, U.S.A
| | - T Ward
- Division of Hematology/Oncology, Department of Medicine, University of Cincinnati Medical Center, Cincinnati, OH, U.S.A
| | - M Gaskill-Shipley
- Department of Radiology, University of Cincinnati Medical Center, Cincinnati, OH, U.S.A
| | - R Chaudhary
- Division of Hematology/Oncology, Department of Medicine, University of Cincinnati Medical Center, Cincinnati, OH, U.S.A
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Chaudhary R, Cyanam D, Mittal V, Tom W, Au-Young J, Allen C, Sadis S, Hyland F. Tumor mutation burden assessment on FFPE samples using a targeted next-generation sequencing assay. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy269.171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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17
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Gurbel PA, Chaudhary R, Tran H, Bliden KP, Navarese EP, Tantry US. 5919Heightened thrombogenicity in women with myocardial infraction no obstructive coronary artery disease: the difference between the sexes. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.5919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- P A Gurbel
- Inova Heart and Vascular Institute, Inova Center for Thrombosis Research and Drug Devlopment, Falls Church, United States of America
| | - R Chaudhary
- Inova Heart and Vascular Institute, Inova Center for Thrombosis Research and Drug Devlopment, Falls Church, United States of America
| | - H Tran
- Inova Heart and Vascular Institute, Inova Center for Thrombosis Research and Drug Devlopment, Falls Church, United States of America
| | - K P Bliden
- Inova Heart and Vascular Institute, Inova Center for Thrombosis Research and Drug Devlopment, Falls Church, United States of America
| | - E P Navarese
- Inova Heart and Vascular Institute, Inova Center for Thrombosis Research and Drug Devlopment, Falls Church, United States of America
| | - U S Tantry
- Inova Heart and Vascular Institute, Inova Center for Thrombosis Research and Drug Devlopment, Falls Church, United States of America
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Bliden KP, Tantry US, Navarese EP, Chaudhary R, Gurbel PA. P1559Stability of thromboelastographic phenotype in patients with cardiovascular disease. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- K P Bliden
- Inova Heart and Vascular Institute, Inova Center for Thrombosis Research and Drug Devlopment, Falls Church, United States of America
| | - U S Tantry
- Inova Heart and Vascular Institute, Inova Center for Thrombosis Research and Drug Devlopment, Falls Church, United States of America
| | - E P Navarese
- Inova Heart and Vascular Institute, Inova Center for Thrombosis Research and Drug Devlopment, Falls Church, United States of America
| | - R Chaudhary
- Inova Heart and Vascular Institute, Inova Center for Thrombosis Research and Drug Devlopment, Falls Church, United States of America
| | - P A Gurbel
- Sinai Center of Baltimore, Baltimore, United States of America
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19
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Machado J, Reis J, Fernandes M, Silva R, Cirnes L, Chaudhary R, Carneiro F, Costa J. Determining tumor mutation load using an NGS-based, target gene panel. Eur J Cancer 2018. [DOI: 10.1016/j.ejca.2018.01.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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20
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Robinson S, Chaudhary R, Jimenez-Saiz R, Rayner L, Jodana M, Daniel J. A168 KAISO-INDUCED INTESTINAL INFLAMMATION IS ACCOMPANIED BY FAULTY CELL ADHESION AND ABERRANT INTESTINAL REPAIR. J Can Assoc Gastroenterol 2018. [DOI: 10.1093/jcag/gwy009.168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- S Robinson
- Cell Biology Program, The Hospital for Sick Children Research Institute, Toronto, ON, Canada
| | - R Chaudhary
- McMaster Immunology Research Centre, McMaster University, Hamilton, ON, Canada
| | - R Jimenez-Saiz
- McMaster Immunology Research Centre, McMaster University, Hamilton, ON, Canada
| | - L Rayner
- Dept. of Biology, McMaster University, Hamilton, ON, Canada
| | - M Jodana
- McMaster Immunology Research Centre, McMaster University, Hamilton, ON, Canada
| | - J Daniel
- Dept. of Biology, McMaster University, Hamilton, ON, Canada
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21
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Chaudhary R, Bliden K, Tantry U, Gurbel P. P3282Safety and efficacy of direct oral anticoagulants in obese patients undergoing treatment for venous thromboembolism: systemic review and network meta-analysis. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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22
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Chaudhary R, Bliden K, Tantry U, Gurbel P. P1416Safety and efficacy of direct oral anticoagulants in elderly patients undergoing treatment for venous thromboembolism: systemic review and network meta-analysis. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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23
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Chaudhary R, Chauhan A, Singhal M, Bagga S. Risk factor profiling and study of atherosclerotic coronary plaque burden and morphology with coronary computed tomography angiography in coronary artery disease among young Indians. Int J Cardiol 2017; 240:452-457. [PMID: 28477962 DOI: 10.1016/j.ijcard.2017.04.090] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 04/21/2017] [Accepted: 04/26/2017] [Indexed: 02/03/2023]
Abstract
BACKGROUND With a decade earlier manifestation of coronary artery disease (CAD) and paucity of data characterizing coronary plaque with coronary computed tomography angiography (CTA) among CAD patients in India, the study aimed to analyze patient characteristics and coronary plaque burden and morphology in young Indian patients with CAD. METHODS Serial coronary CTA was performed in 96 CAD patients. Among 60 patients ≤40years, risk factor and coronary plaque analysis done using a 256- slice CT in 33 patients with acute coronary syndrome (ACS) was compared with 27 patients with chronic stable angina (CSA). Univariate and multivariate analysis was performed, for factors predicting ACS as an outcome among young CAD patients. In addition, quantitative and morphologic plaque characteristics were compared among those ≤40years and >40years. RESULTS Among 60 subjects ≤40years of age, 77% had dyslipidemia, 70% high lipoprotein(a), 53.33% elevated hs-CRP and 73.33% raised homocysteine. hs-CRP (9.33 vs. 3.33, p value=0.01) and serum triglycerides (178.67 vs. 141.42, p value=0.03) were markedly raised in patients with ACS. Statistically significant number of patients in the ACS group had positive remodelling (ACS, 69.7% vs. CSA, 14.8%; p value<0.001), low attenuation plaque (ACS, 63.6% vs. CSA, 11.1%; p value<0.001), spotty calcification (ACS, 36.4% vs. CSA, 3.7%; p=0.002) and non-calcified plaque (ACS, 69.7% vs. CSA, 11.1%; p<0.001). On multivariate analysis, only lipoprotein (a) >30mg/dL and composite vulnerability score maintained a predictive value for ACS in patients ≤40years. Statistically significant number of patients in the younger age group had higher mean total plaque volume (66.17±41.31mm3 vs. 44.94±49.07mm3; p=0.03), remodelling index (1.5±0.27 vs. 1.08±0.38; p=0.0001). Comparing culprit lesion characteristics of ACS patients in the two age groups, positive remodelling (95.8% vs. 70.5%, p=0.02), spotty calcification (50% vs. 11.7%, p=0.01) and non-calcified plaque (95.8% vs. 70.5%, p=0.02) were significantly more frequent in patients ≤40years. CONCLUSION ACS in young Indians is characterized by a higher prevalence of both conventional and newer risk factors. In addition, culprit lesions in young ACS patients are more frequently characterized by coronary plaques with high risk morphological features. This may have implications in terms of preventive strategies to identify this high-risk group.
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Affiliation(s)
- R Chaudhary
- Department of Cardiology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - A Chauhan
- Department of Medicine, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - M Singhal
- Department of Radiodiagnosis, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - S Bagga
- Department of Cardiology, Post Graduate Institute of Medical Education and Research, Chandigarh, India.
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Chaudhary N, Chaudhary R, Kesari JP, Patra A. Effect of composition ratio of P3HT:PC61BM in organic solar cells: optical and morphological properties. ACTA ACUST UNITED AC 2017. [DOI: 10.1080/14328917.2017.1317061] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Neeraj Chaudhary
- Flexible Organic Energy Devices, Advanced Materials and Devices Division, CSIR-National Physical Laboratory, New Delhi, India
- Department of Mechanical Engineering, Delhi Technological University, Delhi, India
| | - Rajiv Chaudhary
- Department of Mechanical Engineering, Delhi Technological University, Delhi, India
| | - J. P. Kesari
- Department of Mechanical Engineering, Delhi Technological University, Delhi, India
| | - Asit Patra
- Flexible Organic Energy Devices, Advanced Materials and Devices Division, CSIR-National Physical Laboratory, New Delhi, India
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Boyle MA, Dhar A, Chaudhary R, Kent S, O'Hare SS, Dassios T, Broster S. Introducing high-flow nasal cannula to the neonatal transport environment. Acta Paediatr 2017; 106:509-512. [PMID: 27977876 DOI: 10.1111/apa.13702] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Accepted: 12/07/2016] [Indexed: 11/29/2022]
Affiliation(s)
- Michael A. Boyle
- Acute Neonatal Transfer Service; Cambridge University Hospitals NHS Foundation Trust; Cambridge UK
| | - Arunava Dhar
- Acute Neonatal Transfer Service; Cambridge University Hospitals NHS Foundation Trust; Cambridge UK
| | - Rajiv Chaudhary
- Acute Neonatal Transfer Service; Cambridge University Hospitals NHS Foundation Trust; Cambridge UK
| | - Susan Kent
- Acute Neonatal Transfer Service; Cambridge University Hospitals NHS Foundation Trust; Cambridge UK
| | - S Samantha O'Hare
- Acute Neonatal Transfer Service; Cambridge University Hospitals NHS Foundation Trust; Cambridge UK
| | - Theodore Dassios
- Acute Neonatal Transfer Service; Cambridge University Hospitals NHS Foundation Trust; Cambridge UK
| | - Susan Broster
- Acute Neonatal Transfer Service; Cambridge University Hospitals NHS Foundation Trust; Cambridge UK
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Lopez L, Bliden K, Chaudhary R, Damrongwatanasuk R, Guyer K, Gesheff M, Franzese C, Tantry U, Gurbel P. Pro-atherogenic oxidized-LDL/Β2-glycoprotein I complexes in coronary artery disease patients are associated with disease severity. Atherosclerosis 2016. [DOI: 10.1016/j.atherosclerosis.2016.07.178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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27
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Chaudhary R, Pokharel P. Nepal's perspective on antibiotic resistance. Int J Infect Dis 2016. [DOI: 10.1016/j.ijid.2016.02.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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28
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Pokhrel RH, Aung MS, Thapa B, Chaudhary R, Mishra SK, Kawaguchiya M, Urushibara N, Kobayashi N. Detection of ST772 Panton-Valentine leukocidin-positive methicillin-resistant Staphylococcus aureus (Bengal Bay clone) and ST22 S. aureus isolates with a genetic variant of elastin binding protein in Nepal. New Microbes New Infect 2016; 11:20-7. [PMID: 27014464 PMCID: PMC4789347 DOI: 10.1016/j.nmni.2016.02.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Revised: 02/03/2016] [Accepted: 02/03/2016] [Indexed: 11/25/2022] Open
Abstract
Genetic characteristics were analysed for recent clinical isolates of methicillin-resistant and -susceptible Staphylococcus aureus (MRSA and MSSA respectively) in Kathmandu, Nepal. MRSA isolates harbouring Panton-Valentine leukocidin (PVL) genes were classified into ST1, ST22 and ST88 with SCCmec-IV and ST772 with SCCmec-V (Bengal Bay clone), while PVL-positive MSSA into ST22, ST30 and ST772. ST22 isolates (PVL-positive MRSA and MSSA, PVL-negative MRSA) possessed a variant of elastin binding protein gene (ebpS) with an internal deletion of 180 bp, which was similar to that reported for ST121 S. aureus previously outside Nepal. Phylogenetic analysis indicated that the ebpS variant in ST22 might have occurred independently of ST121 strains. This is the first report of ST772 PVL-positive MRSA in Nepal and detection of the deletion variant of ebpS in ST22 S. aureus.
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Affiliation(s)
- R H Pokhrel
- Genesis Laboratory and Research, Tribhuvan University, Kathmandu, Nepal
| | - M S Aung
- Sapporo Medical University, Sapporo, Japan
| | - B Thapa
- Genesis Laboratory and Research, Tribhuvan University, Kathmandu, Nepal
| | - R Chaudhary
- Nepal Army Institute of Health Sciences, Tribhuvan University, Kathmandu, Nepal
| | - S K Mishra
- Institute of Medicine, Tribhuvan University, Kathmandu, Nepal
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Chaudhary R, Upendran M, Campion N, Yeung A, Blanch R, Morgan-Warren P, Gibb I, Nelson T, Scott R. The role of computerised tomography in predicting visual outcome in ocular trauma patients. Eye (Lond) 2015; 29:867-71. [PMID: 25853401 DOI: 10.1038/eye.2015.39] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Accepted: 02/09/2015] [Indexed: 11/09/2022] Open
Abstract
PURPOSE Ocular blast injuries in the military setting are particularly associated with significant maxillofacial trauma and/or brain injury. The opportunity to perform a comprehensive ophthalmic evaluation is frequently limited in the acute multiple trauma scenario. We aim to describe the relationship between the clinical effects of acute ocular and orbital blast trauma with the findings on computerised tomography (CT). METHODS This was a retrospective consecutive case series of all soldiers with facial and/or suspected ocular injuries. A total of 80 eyes that had suffered blast injuries of varying severity were studied. Assessment of orbital and ocular CT images were performed by military consultant radiologists. A comparison was made with actual clinical findings. Statistical analysis was performed using Fisher's exact test. RESULTS No pathological findings were described in 37 of the 80 eyes imaged by orbital and ocular CT scans. Clinically, these eyes and orbits were all found to be intact, or had minor trauma. All foreign bodies and penetrating eye injuries were successfully diagnosed by CT. Absence of an orbital fracture did not rule out a globe injury. However, a corneal or scleral defect was less likely when an orbital fracture was absent. CONCLUSION The eye is a delicate structure prone to injury that requires urgent repair if breached. It is difficult to assess thoroughly in the unconscious or distressed patient. In this context, CT imaging is invaluable to be able to make a relatively confident prediction of clinical findings and decide upon the necessity for acute ophthalmic surgical intervention.
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Affiliation(s)
- R Chaudhary
- Department of Ophthalmology, Birmingham and Midland Eye Centre, City Hospital NHS Trust, Birmingham, UK
| | - M Upendran
- Department of Ophthalmology, Birmingham and Midland Eye Centre, City Hospital NHS Trust, Birmingham, UK
| | - N Campion
- Section of Neurotrauma and Neurodegeneration, School of Clinical and Experimental Medicine, University of Birmingham, Birmingham, UK
| | - A Yeung
- Department of Ophthalmology, Birmingham and Midland Eye Centre, City Hospital NHS Trust, Birmingham, UK
| | - R Blanch
- Section of Neurotrauma and Neurodegeneration, School of Clinical and Experimental Medicine, University of Birmingham, Birmingham, UK
| | - P Morgan-Warren
- Section of Neurotrauma and Neurodegeneration, School of Clinical and Experimental Medicine, University of Birmingham, Birmingham, UK
| | - I Gibb
- Fort Blockhouse, Defence Centre for Imaging, Gosport, UK
| | - T Nelson
- Royal Centre for Defence Medicine, New Queen Elizabeth Hospital, Birmingham, UK
| | - R Scott
- 1] Department of Ophthalmology, Birmingham and Midland Eye Centre, City Hospital NHS Trust, Birmingham, UK [2] Royal Centre for Defence Medicine, New Queen Elizabeth Hospital, Birmingham, UK
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Capoor MR, Aggarwal S, Raghvan C, Gupta DK, Jain AK, Chaudhary R. Clinical and microbiological characteristics of Rhodotorula mucilaginosa infections in a tertiary-Care facility. Indian J Med Microbiol 2014; 32:304-9. [DOI: 10.4103/0255-0857.136576] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Affiliation(s)
- Michael Boyle
- Acute Neonatal Transfer Service; Addenbrooke's Hospital; Cambridge UK
| | - Rajiv Chaudhary
- Acute Neonatal Transfer Service; Addenbrooke's Hospital; Cambridge UK
| | - Sue Kent
- Acute Neonatal Transfer Service; Addenbrooke's Hospital; Cambridge UK
| | - Samantha O'Hare
- Acute Neonatal Transfer Service; Addenbrooke's Hospital; Cambridge UK
| | - Susan Broster
- Acute Neonatal Transfer Service; Addenbrooke's Hospital; Cambridge UK
| | - Theodore Dassios
- Acute Neonatal Transfer Service; Addenbrooke's Hospital; Cambridge UK
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Singh A, Solanki A, Chaudhary R. Demonstration of IgG subclass (IgG1 and IgG3) in patients with positive direct antiglobulin tests. Immunohematology 2014; 30:24-27. [PMID: 25238241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Serologic characterization of autoantibodies helps in the management and monitoring of the course of autoimmune hemolytic anemia (AIHA). The purpose of this study was to evaluate gel centrifugation test (GCT) cards for immunoglobulin G (IgG) titer and determination of IgG subclasses IgG1 and IgG3 and their influence on hemolysis. Eighty direct antiglobulin test (DAT)-positive patients were examined with the help of GCT cards for IgG titer and IgG subclasses. The results were correlated with the presence and absence of hemolysis. A statistically significant (p < 0.005) association of hemolysis with increasing anti-IgG titer was observed. When IgG titer was 30 or less, 28 (50.91%) patients had no hemolysis, whereas 15 (93.75%) patients had features of hemolysis when titer was at least 300. Statistically significant (p < 0.005) association of subclass of IgG (IgG1, IgG3) coating the red blood cells with intravascular hemolysis was also seen. Twenty-nine (80.56%) patients had evidence of hemolysis when IgG1 or IgGl-IgG3 both were present. Gel technology is helpful to demonstrate red blood cell-bound autoantibodies and their characterization with regard to class, subclass, and titer. This information is useful to identify patients with AIHA who are at risk of severe hemolysis with adverse prognosis.
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Affiliation(s)
| | | | - R Chaudhary
- MD (corresponding author), Professor and Head, Department of Transfusion Medicine, Sanjay Gandhi Postgraduate Institute of Medical Sciences (SGPGIMS), Lucknow 226014, India
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Abstract
BACKGROUND AND OBJECTIVE Therapeutic hypothermia is now the standard of care for hypoxic-ischemic encephalopathy. Treatment should be started early, and it is often necessary to transfer the infant to a regional NICU for ongoing care. There are no large studies reporting outcomes from infants cooled passively compared with active (servo-controlled) cooling during transfer. Our goal was to review data from a regional transport service, comparing both methods of cooling. METHODS This was a retrospective observational study of 143 infants referred to a regional NICU for ongoing therapeutic hypothermia. Of the 134 infants transferred, the first 64 were cooled passively, and 70 were subsequently cooled after purchase of a servo-controlled mattress. Key outcome measures were time to arrival at the regional unit, temperature at referral and arrival at the regional unit, and temperature stability during transfer. RESULTS The age cooling was started was significantly shorter in the actively cooled group (46 [0-352] minutes vs 120 [0-502] minutes; P <.01). The median (range) stabilization time (153 [60-385] minutes vs 133 [45-505] minutes; P = .04) and age at arrival at the regional unit (504 [191-924] minutes vs 452 [225-1265]) minutes; P = .01) were significantly shorter in the actively cooled group. Only 39% of infants passively cooled were within the target temperature range at arrival to the regional unit compared with 100% actively cooled. CONCLUSIONS Servo-controlled active cooling has been shown to improve temperature stability and is associated with a reduction in transfer time.
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Affiliation(s)
- Rajiv Chaudhary
- BSc, MBBS, MRCPCH, Neonatal ICU, Box 402, Rosie Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge CB2 0QQ, UK.
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Chaudhary R, Dhillon N, Jones L. Erratum: Adherence to NICE guidelines for new glaucoma referrals. Eye (Lond) 2013. [DOI: 10.1038/eye.2013.188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Chaudhary R, Silwal A, Gupta A, Kelsall W. Drugs used for comfort care after withdrawal of intensive treatment in tertiary neonatal units in the UK. Arch Dis Child Fetal Neonatal Ed 2012; 97:F487. [PMID: 22581792 DOI: 10.1136/fetalneonatal-2012-301883] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Park CK, Kim YH, Kim JW, Kim TM, Choi SH, Kim YJ, Choi BS, Lee SH, Kim CY, Kim IH, Lee DZ, Kheder A, Forbes M, Craven I, Hadjivassiliou M, Shonka NA, Kessinger A, Aizenberg MR, Weller M, Meisner C, Platten M, Simon M, Nikkhah G, Papsdorf K, Sabel M, Braun C, Reifenberger G, Wick W, Alexandru D, Haghighi B, Muhonen MG, Chamberlain MC, Sumrall AL, Burri S, Brick W, Asher A, Murillo-Medina K, Guerrero-Maldonado A, Ramiro AJ, Cervantes-Sanchez G, Erazo-Valle-Solis AA, Garcia-Navarro V, Sperduto PW, Shanley R, Luo X, Kased N, Sneed PK, Roberge D, Chao S, Weil R, Suh J, Bhatt A, Jensen A, Brown PD, Shih H, Kirkpatrick J, Gaspar LE, Fiveash J, Chiang V, Knisely J, Sperduto CM, Lin N, Mehta MP, Anderson MD, Raghunathan A, Aldape KD, Fuller GN, Gilbert MR, Robins HI, Wang M, Gilbert MR, Chakravarti A, Grimm S, Penas-Prado M, Chaudhary R, Anderson PJ, Elinzano H, Gilbert RA, Mehta M, Aoki T, Ueba T, Arakawa Y, Miyatake SI, Tsukahara T, Miyamoto S, Nozaki K, Taki W, Matsutani M, Shakur SF, Bit-Ivan E, Watkin WG, Farhat HI, Merrell RT, Zwinkels H, Dorr J, Kloet A, Taphoorn MJ, Vecht CJ, Bogdahn U, Stockhammer G, Mahapatra A, Hau P, Schuknecht B, van den Bent M, Heinrichs H, Yust-Katz S, Liu V, Sanghee K, Groves M, Puduvalli V, Levin V, Conrad C, Colman H, Hsu S, Yung AW, Gilbert MR, Kunz M, Armbruster L, Thon N, Jansen N, Lutz J, Herms J, Egensperger R, Eigenbrod S, Kretzschmar H, La CF, Tonn JC, Kreth FW, Brandes AA, Franceschi E, Agati R, Poggi R, Dall'Occa P, Bartolotti M, Di Battista M, Marucci G, Girardi F, Ermani M, Sherman W, Raizer J, Grimm S, Ruckser R, Tatzreiter G, Pfisterer W, Oberhauser G, Honigschnabel S, Aboul-Enein F, Ausch C, Kitzweger E, Hruby W, Sebesta C, Green RM, Woyshner EA, Suchorska B, Jansen NL, Janssen H, Kretzschmar H, Simon M, Hentschel B, Poepperl G, Kreth FW, Linn J, LaFougere C, Weller M, Tonn JC, Suchorska B, Jansen NL, Graute V, Eigenbrod S, Bartenstein P, Kreth FW, LaFougere C, Tonn JC, Hassanzadeh B, Tohidi V, Levacic D, Landolfi JC, Singer S, DeBraganca K, Omuro A, Grommes C, Omar AI, Jalan P, Pandav V, Bekker S, Fuente MIDL, Kaley T, Zhao S, Chen X, Soffietti R, Magistrello M, Bertero L, Bosa C, Crasto SG, Garbossa D, Lolli I, Trevisan E, Ruda R, Ruda R, Bertero L, Bosa C, Trevisan E, Pace A, Carapella C, Dealis C, Caroli M, Faedi M, Bomprezzi C, Thomas AA, Dalmau J, Gresa-Arribas N, Fadul CE, Kumthekar PU, Raizer J, Grimm S, Herrada J, Antony N, Richards M, Gupta A, Landeros M, Arango C, Campos-Gines AF, Friedman P, Wilson H, Streeter JC, Cohen A, Gilreath J, Sageser D, Ye X, Bell SD, McGregor J, Bourekas E, Cavaliere R, Newton H, Sul J, Odia Y, Zhang W, Shih J, Butman JA, Hammoud D, Kreisl TN, Iwamoto F, Fine HA, Berriel LG, Santos FN, Levy AC, Fanelli MF, Chinen LT, da Costa AA, Bourekas E, Wayne Slone H, Bell SD, McGregor J, Bokstein F, Blumenthal DT, Shpigel S, Phishniak L, Yust-Katz S, Garciarena P, Liue D, Yuan Y, Groves MD, Wong ET, Villano JL, Engelhard HH, Ram Z, Sahebjam S, Millar BA, Sahgal A, Laperriere N, Mason W, Levin VA, Hess KR, Choucair AK, Flynn PJ, Jaeckle KA, Kyritsis AP, Yung WKA, Prados MD, Bruner JM, Ictech S, Nghiemphu PL, Lai A, Green RM, Cloughesy TF, Zaky W, Gilles F, Grimm J, Bluml S, Dhall G, Rosser T, Randolph L, Wong K, Olch A, Krieger M, Finlay J, Capellades J, Verger E, Medrano S, Gonzalez S, Gil M, Reynes G, Ribalta T, Gallego O, Segura PP, Balana C, Gwak HS, Joo J, Kim S, Yoo H, Shin SH, Han JY, Kim HT, Yun T, Lee JS, Lee SH, Kim W, Vogelbaum MA, Wang M, Peereboom DM, Macdonald DR, Giannini C, Suh JH, Jenkins RB, Laack NN, Brackman DG, Shrieve DC, Souhami L, Mehta MP, Leibetseder A, Wohrer A, Ackerl M, Flechl B, Sax C, Spiegl-Kreinecker S, Pichler J, Widhalm G, Dieckmann K, Preusser M, Marosi C, Sebastian C, Alejandro M, Bernadette C, Naomi A, Kavan P, Sahebjam S, Garoufalis E, Guiot MC, Muanza T, Del Maestro R, Petrecca K, Sharma R, Curry R, Joyce J, Rosenblum M, Jaffe E, Matasar M, Lin O, Fisher R, Omuro A, Yin C, Iwamoto FM, Fraum TJ, Nayak L, Diamond EL, DeAngelis LM, Pentsova E, Vera-Bolanos E, Gilbert MR, Aldape K, Necesito-Reyes MJ, Fouladi M, Gajjar A, Goldman S, Metellus P, Mikkelsen T, Omuro A, Packer R, Partap S, Pollack IF, Prados M, Ian Robins H, Soffietti R, Wu J, Armstrong TS, Nakada M, Hayashi Y, Miyashita K, Kinoshita M, Furuta T, Sabit H, Kita D, Hayashi Y, Uchiyam N, Kawakami K, Minamoto T, Hamada JI, Diamond EL, Rosenblum M, Heaney M, Carrasquillo J, Krauthammer A, Nolan C, Kaley TJ, Gil MJ, Fuster J, Balana C, Benavides M, Mesia C, Etxaniz O, Canellas J, Perez-Martin X, Hunter K, Johnston SK, Bridge CA, Rockne RC, Guyman L, Baldock AL, Rockhill JK, Mrugala MM, Beard BC, Adair JE, Kiem HP, Swanson KR, Ranjan T, Desjardins A, Peters KB, Alderson L, Kirkpatrick J, Herndon J, Bailey L, Sampson J, Friedman AH, Friedman H, Vredenburgh JJ, Theeler BJ, Ellezam B, Melguizo-Gavilanes I, Shonka NA, Bruner JM, Puduvalli VK, Taylor JW, Flanagan E, O'Neill B, Seigal T, Omuro A, DeAngelis L, Baerhing J, Hoang-Xuan K, Chamberlain M, Batchelor T, Nishikawa R, Pinto F, Blay JY, Korfel A, Schiff D, Fu BD, Kong XT, Bota D, Omuro A, Beal K, Ivy P, Gutin P, Wu N, Kaley T, Karimi S, DeAngelis L, Pentsova H, Nolan C, Grommes C, Chan T, Mathew R, Droms L, Shimizu F, Tabar V, Grossman S, Yovino S, Campian J, Wild A, Herman J, Brock M, Balmanoukian A, Ye X, Portnow J, Badie B, Synold T, Lacey S, D'Apuzzo M, Frankel P, Chen M, Aboody K, Letarte N, Gabay MP, Bressler LR, Stachnik JM, Villano JL, Jaeckle KA, Anderson SK, Willson A, Moreno-Aspitia A, Colon-Otero G, Patel T, Perez E, Peters KB, Reardon DA, Vredenburgh JJ, Desjardins A, Herndon JE, Coan A, McSherry F, Lipp E, Brickhouse A, Massey W, Friedman HS, Alderson LM, Desjardins A, Ranjan T, Peters KB, Friedman HS, Vredenburgh JJ, Ranjan T, Desjardins A, Peters KB, Alderson L, Kirkpatrick J, Herndon J, Bailey L, Sampson J, Friedman AH, Friedman H, Vredenburgh J, Welch MR, Omuro A, Grommes C, Westphal M, Bach F, Reuter D, Ronellenfitsch M, Steinbach J, Pietsch T, Connelly J, Hamza MA, Puduvalli V, Neal ML, Trister AD, Ahn S, Bridge C, Lange J, Baldock A, Rockne R, Mrugala M, Rockhill JK, Lai A, Cloughesy T, Swanson KR, Neuwelt AJ, Nguyen TM, Tyson RM, Nasseri M, Neuwelt EA, Bubalo JS, Barnes PD, Phuphanich S, Hu J, Rudnick J, Chu R, Yu J, Naruse R, Ljubimova J, Sanchez C, Guevarra A, Naor R, Black K, Mahta A, Bhavsar TM, Herath K, Huang C, McClain J, Rizzo K, Sheehan J, Chamberlain M, Glantz M, McClain J, Glantz MJ, Zoccoli C, Nicholas MK, Xie T, White D, Liker S, Gajewski T, Selfridge J, Piccioni DE, Zurayk M, Mody R, Quan J, Li S, Chen W, Chou A, Liau L, Green R, Cloughesy T, Lai A, Gomez-Molinar V, Ruiz-Gonzalez S, Valdez-Vazquez R, Arrieta O, Stenner JI. CLIN-NEURO/MEDICAL ONCOLOGY. Neuro Oncol 2012. [DOI: 10.1093/neuonc/nos229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Chaudhary R, Dadhich S, Vyas J. Posterior Reversible Encephalopathy Syndrome : A Rare Cause of Sudden Onset Vision Loss in Pregnancy. Nepal j obstet gynaecol 2012. [DOI: 10.3126/njog.v6i2.6759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Posterior Reversible Encephalopathy Syndrome (PRES) is a very rare cause of sudden onset vision loss in pregnancy. There are only few case reports in literature. It is characterized by headache, seizures, altered mental status and visual deficits ranging from visual neglect to cortical blindness. Here a case if PRES has been reported with discussion on its pathophysiology. NJOG 2011 Nov-Dec; 6 (2): 51-52 DOI: http://dx.doi.org/10.3126/njog.v6i2.6759
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Sheoran V, Chaudhary R, Tholia NK. Remediation of acidic industrial effluents by sulphate reducing bioreactors. J Environ Sci Eng 2012; 54:371-378. [PMID: 24749196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This research work was designed to examine the feasibility of sulphate reducing bioreactors with organic substrates, containing manures, and other cellulosic wastes for remediation of acidic industrial wastewater on bench scale. The pH of the wastewater increased from 5.5. to 7.18, alkalinity from 0 to 2566 mg/L as CaCO3, acidity removal was from 357 to 210 mg/L as CaCO3, sulphate removal was 92.7%, lead removal was 97.3%, zinc- 99.8%, copper-97.5%, cobalt-99.4%, manganese-98.9%, nickel- 98.3% and iron 99.5%, were observed in this study after the maximum retention of 106 days. This paper describes bioremediation as a state-of-art for the treatment of wastewater from the industries.
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Chaudhary R, Kadyan A. First postoperative day intraocular pressure rise in resident-performed cataract surgery. Eye (Lond) 2012; 26:1026; author reply 1026-7. [PMID: 22538213 DOI: 10.1038/eye.2012.70] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Venkatesh V, Ponnusamy V, Anandaraj J, Chaudhary R, Malviya M, Clarke P, Arasu A, Curley A. Endotracheal intubation in a neonatal population remains associated with a high risk of adverse events. Eur J Pediatr 2011; 170:223-7. [PMID: 20842378 DOI: 10.1007/s00431-010-1290-8] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2010] [Accepted: 08/31/2010] [Indexed: 12/19/2022]
Abstract
INTRODUCTION There has been a significant increase in premedication use for neonatal intubation in the UK over the past decade. We aimed to determine the adverse events during neonatal intubation using the most commonly used premedication regimen in the UK. DISCUSSION We prospectively studied all intubations performed using morphine, suxamethonium and atropine during a 3-month period in three UK tertiary neonatal units. Premedication was administered for 87/93 (94%) of intubations. Median time taken to prepare premedication was 16 min (IQR 10-35). Median time to successful intubation was 5 min (IQR 2-9) following premedication. Median lowest recorded oxygen saturation after administration of premedication was 65% (IQR 39-85). A bradycardia in the range 61-99/min accompanied the procedure in 24/93 (26%) intubations, with a median duration of bradycardia of 8 s (IQR 1-10). CONCLUSION Despite the widespread move to premedication for neonatal intubation, many deficiencies in everyday practice remain. The rate of haemodynamic complications is high in this commonly used premedication regimen. This study shows that there are important factors to control at the local level in terms of timely preparation and administration of premedication drugs, training and supervision of staff carrying out this high-risk procedure.
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Sachan D, Gupta N, Agarwal P, Chaudhary R. The utility of pre-test clinical scoring for clinical diagnosis of heparin-induced thrombocytopenia in cardiac surgery patients of a tertiary care centre in North India. Transfus Med 2011; 21:231-5. [DOI: 10.1111/j.1365-3148.2010.01068.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Chaudhary R. 44 Effect of plateletpheresis on post donation platelet count and its correlation with serum thrombopoeitin levels. Transfus Apher Sci 2010. [DOI: 10.1016/s1473-0502(10)70032-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Sachdeva MP, Mastana SS, Saraswathy KN, Elizabeth AM, Chaudhary R, Kalla AK. Short ReportGenetic variation at three VNTR loci (D1S80, APOB and D17S5) in two tribal populations of Andhra Pradesh, India. Ann Hum Biol 2009; 31:95-102. [PMID: 14742168 DOI: 10.1080/03014460310001625978] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
This study reports the genetic variation at three variable number of tandem repeat (VNTR) loci (APOB, D17S5 and D1S80) in two tribes (Thoti and Kolam) of Andhra Pradesh, India. Kolams constitute 1% of the total scheduled tribal population of Andhra Pradesh, while Thoti is a numerically small tribe. All three genetic loci were genotyped using the polymerase chain reaction (PCR) technique and were polymorphic in both populations. At the D1S80 locus, both populations showed higher frequencies of allele *31 (9-14%) than other Indian populations. In the APOB system, Thoti showed a very high frequency of allele *37 (54%) and for D17S5 system allele *4 was the most common in Thoti (32%) and allele *2 in Kolam (28%). Both tribes differed statistically significantly from other tribal populations of the region. The level of gene differentiation was low (GST = 0.038) for Indian tribal populations. The allele frequency distribution, heterozygosity and genetic diversity analysis shows that the observed genetic variation is socially and geographically structured.
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Affiliation(s)
- M P Sachdeva
- Department of Anthropology, Delhi University, India
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Abstract
BACKGROUND Endotracheal intubation and laryngoscopy are frequently performed procedures in neonatal intensive care. These procedures represent profoundly painful stimuli and have been associated with laryngospasm, bronchospasm, hemodynamic changes, raised intracranial pressure and an increased risk of intracranial hemorrhage. These adverse changes can cause significant neonatal morbidity but may be attenuated by the use of suitable premedication. AIMS To evaluate current practices for premedication use prior to elective intubation in UK tertiary neonatal units. METHODS Telephone questionnaire survey of all 50 tertiary neonatal units in the UK. RESULTS Ninety percent of units report the routine use of sedation prior to intubation and 82% of units routinely use a muscle relaxant. Morphine was the most commonly used sedative and suxamethonium was the most commonly used muscle relaxant. Approximately half of the units also used atropine during intubation. Seventy seven percent of units had a written policy for premedication. Ten percent of the units did not routinely use any sedatives or muscle relaxants for elective intubation. CONCLUSIONS In comparison with data from a 1998 survey, our study demonstrated an increase in the number of units that have adopted a written policy for premedication use, and in the number routinely using premedication drugs for elective intubation. There remains little consensus as to which drugs should be used and in what dose.
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Chaudhary R, Beaupré LA, Johnston DWC. Knee range of motion during the first two years after use of posterior cruciate-stabilizing or posterior cruciate-retaining total knee prostheses. A randomized clinical trial. J Bone Joint Surg Am 2008; 90:2579-86. [PMID: 19047702 DOI: 10.2106/jbjs.g.00995] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND The impact of posterior cruciate ligament-substituting and posterior cruciate ligament-retaining devices on the range of motion of the knee following primary total knee arthroplasty is unclear. The primary objective of our study was to compare the range of motion of the knee over the first two postoperative years between subjects who had received the ligament-substituting design and those who had received the ligament-retaining design. Secondarily, pain, function, and health-related quality of life were compared between the two groups. METHODS We undertook a prospective randomized study of 100 patients with noninflammatory osteoarthritis who were undergoing primary total knee arthroplasty. Patients were randomized at the time of surgery to receive one of the two study prosthesis designs. They were evaluated preoperatively, at the time of hospital discharge, at three months postoperatively, and at up to two years postoperatively by a physical therapist who was blinded to the group allocation. Active knee flexion and extension, measured with a goniometer, were the primary outcome measures. Self-reported pain, function, and health-related quality of life were measured with the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) and the RAND 36-Item Health Survey (RAND-36). Complications and revision rates were determined through hospital record review and at each patient evaluation. RESULTS Eighty percent (seventy-eight) of the ninety-eight available patients returned for the final assessment. At two years postoperatively, the mean difference between the groups with regard to knee flexion was 0.03 degrees (95% confidence interval, -5.9 degrees to 6.0 degrees ) and the mean difference in knee extension was 1.0 degrees (95% confidence interval, -0.36 degrees to 2.4 degrees ). Ninety-one (93%) of the ninety-eight available patients completed questionnaires at the time of the final assessment. The two treatment groups had similar pain, function, and quality-of-life scores and complication rates. One subject in the cruciate-retaining group required revision, secondary to a deep joint infection, and one subject in the cruciate-substituting group required manipulation to address poor knee flexion. CONCLUSIONS Overall, the two treatment groups had a similar range of motion of the knee over the initial two-year postoperative time period. A satisfactory range of motion was achieved by three months postoperatively and was maintained at the final assessment.
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Affiliation(s)
- R Chaudhary
- University of Alberta, Capital Health, 1F1.52 WMC, 8440-112 Street, Edmonton, AB T6G 2B7, Canada
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Rema V, Bali KK, Ramachandra R, Chugh M, Darokhan Z, Chaudhary R. Cytidine-5-diphosphocholine supplement in early life induces stable increase in dendritic complexity of neurons in the somatosensory cortex of adult rats. Neuroscience 2008; 155:556-64. [PMID: 18619738 PMCID: PMC2860221 DOI: 10.1016/j.neuroscience.2008.04.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2007] [Revised: 04/09/2008] [Accepted: 04/09/2008] [Indexed: 11/25/2022]
Abstract
Cytidine-5-diphosphocholine (CDP-choline or citicholine) is an essential molecule that is required for biosynthesis of cell membranes. In adult humans it is used as a memory-enhancing drug for treatment of age-related dementia and cerebrovascular conditions. However the effect of CDP-choline on perinatal brain is not known. We administered CDP-choline to Long Evans rats each day from conception (maternal ingestion) to postnatal day 60 (P60). Pyramidal neurons from supragranular layers 2/3, granular layer 4 and infragranular layer 5 of somatosensory cortex were examined with Golgi–Cox staining at P240. CDP-choline treatment significantly increased length and branch points of apical and basal dendrites. Sholl analysis shows that the complexity of apical and basal dendrites of neurons is maximal in layers 2/3 and layer 5. In layer 4 significant increases were seen in basilar dendritic arborization. CDP-choline did not increase the number of primary basal dendrites on neurons in the somatosensory cortex. Primary cultures from somatosensory cortex were treated with CDP-choline to test its effect on neuronal survival. CDP-choline treatment neither enhanced the survival of neurons in culture nor increased the number of neurites. However significant increases in neurite length, branch points and total area occupied by the neurons were observed. We conclude that exogenous supplementation of CDP-choline during development causes stable changes in neuronal morphology. Significant increase in dendritic growth and branching of pyramidal neurons from the somatosensory cortex resulted in enlarging the surface area occupied by the neurons which we speculate will augment processing of sensory information.
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Affiliation(s)
- V Rema
- National Brain Research Centre, NH-8, Nainwal Mode, Manesar, Haryana-122050, India.
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Chaudhary R, Chowdhary BP, Harbitz I, Gustavsson I, Evans CT. Localization of the citrate synthase (CS) gene to the p12-p13 bands of chromosome 5 in pigs by in situ hybridization. Hereditas 2008; 117:39-43. [PMID: 1399705 DOI: 10.1111/j.1601-5223.1992.tb00005.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Citrate synthase (CS) is a key enzyme of the Krebs tricarboxylic acid cycle. A 1.4 kb porcine CS cDNA probe was used to chromosomally localize the CS gene in pigs by in situ hybridization. Two in situ hybridization experiments were conducted. Although the first experiment indicated a distinct signal on the 5p12-p13 bands, a secondary signal was observed on the 13q24-q32 bands. Hence, a second in situ hybridization experiment was conducted at higher stringency. The results demonstrated a consistent signal on the 5p12-p13 bands, and the signal on chromosome 13 was scattered with no prominent secondary peak. The CS gene was therefore assigned to the p12-p13 bands of chromosome 5 in pigs.
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Affiliation(s)
- R Chaudhary
- Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Uppsala
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Gu F, Harbitz I, Chowdhary BP, Chaudhary R, Gustavsson I. Localization of the 6-phosphogluconate dehydrogenase (PGD) gene in horses by in situ hybridization. Hereditas 2008; 117:93-5. [PMID: 1399707 DOI: 10.1111/j.1601-5223.1992.tb00012.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Affiliation(s)
- F Gu
- Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Uppsala
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