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Rai R, Devi P, Kumar K, Naeem K, Kumar H, Kumari K, Kumar A, Kumar A, Muhammad A, Khan MS, Qadir G, Ali S, Maheshwari M, Jawwad M. Efficacy of Inclisiran in patients having familial hypercholesterolemia: heterozygous compared to homozygous trait, a systematic review and meta analysis. Crit Pathw Cardiol 2024:00132577-990000000-00070. [PMID: 38446086 DOI: 10.1097/hpc.0000000000000353] [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: 03/07/2024]
Abstract
OBJECTIVE To find out whether Inclisiran sodium has different efficacy in heterozygous familial hypercholesterolemia (HeFH) and homozygous familial hypercholesterolemia (HoFH) patient groups. METHODS We conducted the systematic review and meta analysis of ORION Clinical Trials Pubmed, Embase and Clinicaltrials.gov databases were searched for the relevant studies.Atheroscalerotic parameters considered for our objective were LDL-C,Total cholesterol,PCSK9, Apolipoportien-B, and Non HDL-C. Primary outcomes were the percentage difference in atheroscalerotic parameters at followup relative to baseline values. Our study examined these primary outcomes in order to determine whether there is a statistically significant difference between the HeFH and HoFH groups. Risk of bias was assessed by Cochrane risk of bias tool. Meta-analysis was performed when at least two studies reported on the same variable. RESULTS Four ORION Clinical Trials provided the data related to the mean difference in the atheroscalerotic parameters at followup relative to baseline, of HeFH and HoFH patient populations, after administration of 300mg inclisiran subcutaneously. We pooled together these mean difference for each group and applied a statistical test to analyse if the values were significantly different between the groups. The results of our study unveiled the significant difference in pooled mean differences in LDL-C (HeFH:-48.62% HoFH:-9.12% p<0.05) Total cholesterol (HeFH:-30.31% HoFH:-11.50% p<0.05),Apolipoprotein(HeFH:-39.97% HoFH:-14.68% p<0.05), non HDL(HeFH:-44.51% HoFH:-12.22% p<0.05) between HeFH and HoFH groups. However the difference in pooled mean difference in PCSK9 values (HeFH:-68.41% HoFH:-56.25% p=0.2)between HeFH and HoFH groups, was statistically insignificant. Studies were of high quality. CONCLUSION There was significant difference in the reductions in atherosclerotic lipid parameters in heterozygous and homozygous populations after the administration of Inclisiran except for PCSK9 parameter. Further studies are needed to support this conclusion.
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Affiliation(s)
- Rahul Rai
- Department of Medicine and Surgery, Liaquat University of medical and health sciences, Jamshoro, Pakistan
| | - Payal Devi
- Department of Medicine and Surgery, People university of medical and health sciences, Nawabshah, Pakistan
| | - Kapeel Kumar
- Department of Medicine and Surgery, Liaquat University of medical and health sciences, Jamshoro, Pakistan
| | - Kainat Naeem
- Department of Medicine and Surgery, Avicenna medical college, Lahore, Pakistan
| | - Hanesh Kumar
- Department of Medicine and Surgery, Hubei university of arts and science medical college, Hubei, China
| | - Kajal Kumari
- Department of Medicine and Surgery, Liaquat University of medical and health sciences, Jamshoro, Pakistan
| | - Anish Kumar
- Department of Medicine and Surgery, Liaquat University of medical and health sciences, Jamshoro, Pakistan
| | - Aman Kumar
- Department of Medicine and Surgery, Liaquat University of medical and health sciences, Jamshoro, Pakistan
| | - Aqeel Muhammad
- Department of Medicine and Surgery, Dow University of Health Sciences, Karachi, Pakistan
| | - Muhammad Sohaib Khan
- Department of Medicine and Surgery, Dow University of Health Sciences, Karachi, Pakistan
| | - Ghulam Qadir
- Department of Medicine and Surgery, Chandka Medical College(SMBBMU) Larkana, Pakistan
| | - Shaheryar Ali
- Department of Medicine and Surgery, Chandka Medical College(SMBBMU) Larkana, Pakistan
| | - Mahveer Maheshwari
- Department of Medicine and Surgery, Liaquat University of medical and health sciences, Jamshoro, Pakistan
| | - Muhammad Jawwad
- Department of Medicine and Surgery, Dow University of Health Sciences, Karachi, Pakistan
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Noronha V, Patil V, Chaturvedi P, Mathrudev V, Menon N, Bhattacharjee A, Singh A, Peelay Z, Chakraborty S, Jadhav M, Alone M, Bhagyavant P, Kolkur M, Srinivas S, Das S, Roy S, Mandal T, Dsouza H, Saha S, Rai R, Srikanth A, Shah D, Khan A, Muthuluri H, Kumar A, Agarwal A, Rajpurohit A, Goli VB, Sekar A, Mantri A, Kanteti APK, Majumdar S, Khaddar S, Shenoy R, Elamarthi P, Rathnasamy N, Kashyap L, Abraham G, Booma N, Simha V, Chaukar D, Pai P, Nair S, Laskar S, Nawale K, Naidu P, Salian S, Shelar P, Raulo R, Dhumal SB, Prabhash K. Phase 3 RCT comparing docetaxel-platinum with docetaxel-platinum-5FU as neoadjuvant chemotherapy in borderline resectable oral cancer. Eur J Cancer 2024; 200:113560. [PMID: 38306841 DOI: 10.1016/j.ejca.2024.113560] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 12/27/2023] [Accepted: 01/13/2024] [Indexed: 02/04/2024]
Abstract
BACKGROUND Neoadjuvant chemotherapy (NACT) with TPF (docetaxel, cisplatin, and 5FU) is one of the treatment options in very locally advanced oral cancer with a survival advantage over PF (cisplatin and 5FU). TP (docetaxel and cisplatin) has shown promising results with a lower rate of adverse events but has never been compared to TPF. METHODS In this phase 3 randomized superiority study, adult patients with borderline resectable locally advanced oral cancers were randomized in a 1:1 fashion to either TP or TPF. After the administration of 2 cycles, patients were evaluated in a multidisciplinary clinic and further treatment was planned. The primary endpoint was overall survival (OS) and secondary endpoints were progression-free survival (PFS) and adverse events. RESULTS 495 patients were randomized in this study, 248 patients in TP arm and 247 in TPF arm. The 5-year OS was 18.5% (95% CI 13.8-23.7) and 23.9% (95% CI 18.1-30.1) in TP and TPF arms, respectively (Hazard ratio 0.778; 95% CI 0.637-0.952; P = 0.015). Following NACT, 43.8% were deemed resectable, but 34.5% underwent surgery. The 5-year OS was 50.7% (95% CI 41.5-59.1) and 5% (95%CI 2.9-8.1), respectively, in the surgically resected versus unresected cohort post NACT (P < 0.0001). Grade 3 or above adverse events were seen in 97 (39.1%) and 179 (72.5%) patients in the TP and TPF arms, respectively (P < 0.0001). CONCLUSION NACT with TPF has a survival benefit over TP in borderline resectable oral cancers, with an increase in toxicity which is manageable. Patients who undergo surgery achieve a relatively good, sustained survival.
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Affiliation(s)
- Vanita Noronha
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Vijay Patil
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Pankaj Chaturvedi
- Department of Head and Neck Surgery, Tata Memorial Centre, HBNI, Mumbai, India
| | | | - Nandini Menon
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Atanu Bhattacharjee
- Section of Biostatistics, Centre for Cancer Epidemiology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Ajay Singh
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Zoya Peelay
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | | | - Monica Jadhav
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Mitali Alone
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | | | - Manali Kolkur
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Sujay Srinivas
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Sudeep Das
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Somnath Roy
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Tanmoy Mandal
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Hollis Dsouza
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Saswata Saha
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Rahul Rai
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Anne Srikanth
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Darshit Shah
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Arif Khan
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Hemanth Muthuluri
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Amit Kumar
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Amit Agarwal
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Anu Rajpurohit
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Vasu Babu Goli
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Anbarasan Sekar
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Anoop Mantri
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | | | - Swaratika Majumdar
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Satvik Khaddar
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Ramnath Shenoy
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Prahlad Elamarthi
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | | | - Lakhan Kashyap
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - George Abraham
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Naveen Booma
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Vijay Simha
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Devendra Chaukar
- Department of Head and Neck Surgery, Tata Memorial Centre, HBNI, Mumbai, India
| | - Prathamesh Pai
- Department of Head and Neck Surgery, Tata Memorial Centre, HBNI, Mumbai, India
| | - Sudhir Nair
- Department of Head and Neck Surgery, Tata Memorial Centre, HBNI, Mumbai, India
| | - Sarbani Laskar
- Department of Radiation Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Kavita Nawale
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Priyanka Naidu
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Sushmita Salian
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Priyanka Shelar
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | - Ravinarayan Raulo
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India
| | | | - Kumar Prabhash
- Department of Medical Oncology, Tata Memorial Centre, HBNI, Mumbai, India.
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Patel M G, Borah N, Kumar B, Rai R, Singh V, Maji C. MEDITERRANEAN DIET AND ITS IMPACT ON THE ILLNESS CHARACTERISTIC OF YOUTH WITH IRRITABLE BOWEL CONDITION. Georgian Med News 2023:62-66. [PMID: 38325300] [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] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Irritable Bowel Disorder (IBD) is a prevalent digestive illness that frequently affects young people and drastically decreases the Quality of Life (QoL). Adults with IBD indications may find relief from their symptoms through nutritional changes like the Mediterranean-style diet. Concerning the seriousness of symptoms, QoL, and additional pertinent results in young people with IBD, this investigation seeks to determine the impact of the Mediterranean-style diet. 200 individuals with IBD who met the Rome-IV criterion and were between the ages of 13 and 19 were enrolled in the present research. A Mediterranean-style diet was provided to the Study Group (SG), which consisted of 100 individuals, while the Control Group (CG), which consisted of 100 patients, followed the usual diet. Various laboratory and clinical characteristics were also assessed at the beginning and end of the study, in addition to IBD values. The Mediterranean-style diet has been demonstrated to be effective and tolerated well in kids and teenagers with IBD. The IBD -SSS (from 148±42.3 to 224±71) IBD -QoL (from 76.7±8.1 to 61.3±9.8), and cumulative IBD rating (from 29.3±11.7 to 32.6±12.1) all showed notable increases in individuals who followed well to this diet. The CG, in comparison, did not show any significant enhancements in these factors. This indicates that a Mediterranean-style diet might provide therapeutic advantages for IBD individuals, especially those who keep adherent to it, concerning symptom severity and QoL. The Mediterranean-style diet proved to be both secure and associated with notable improvements in IBD rates in young and adolescents with IBD.
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Affiliation(s)
- G Patel M
- 1Department of Community Medicine, Parul University, PO Limda, Tal. Waghodia, District Vadodara, Gujarat, India
| | - N Borah
- 2Department of Life Sciences, School of Sciences, JAIN (Deemed-to-be University), Karnataka, India
| | - B Kumar
- 3School of Pharmacy & Research, Dev Bhoomi Uttarakhand University, Dehradun, India
| | - R Rai
- 4Department of Allied Healthcare and Sciences, Vivekananda Global University, Jaipur, India
| | - V Singh
- 5Department of General Medicine, TMMC&RC, Teerthanker Mahaveer University, Moradabad, Uttar Pradesh, India
| | - Ch Maji
- 6Department of Pharmacy, Noida Institute of Engineering and Technology (Pharmacy Institute), Uttar Pradesh, India
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Sansar B, Singh N, Gupta A, Mishra BK, Sharma A, Rai R, Gupta P, Kapoor A. Incurable advanced salivary gland tumours: a retrospective analysis and peek into the perplexing clinical and molecular intricacies from a tertiary care centre in India. Ecancermedicalscience 2023; 17:1602. [PMID: 37799960 PMCID: PMC10550330 DOI: 10.3332/ecancer.2023.1602] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Indexed: 10/07/2023] Open
Abstract
Background Salivary gland tumours are rare cancers with variable course and prognosis. There is a paucity of data, especially for the advanced stages. Materials and methods This is a retrospective analysis carried out in our institute. All patients seeking treatment for incurable advanced salivary gland tumours from October 2018 to September 2022 were included. Relevant clinical data were collected and appropriate statistical analysis was applied. Results 30 patients were included in the analysis. The parotid gland was the most common site of origin (73%). Adenoid cystic carcinoma (ACC) and salivary duct carcinoma (SDC) were equally (37%) the most common pathological subtypes. The majority of patients were males (73%) and lungs (57%) were the most common site of metastases. On molecular analysis, SDC had high rates of androgen receptor (AR) (90%) and human epidermal growth factor receptor 2 (HER2) (55%) positivity. Mucoepidermoid carcinoma (MEC) had AR and HER2 positivity rates of 17% and 20%, respectively, while for ACC it was even lower. A variety of treatment regimens including hormonal therapy, anti-HER2 targeted therapy and chemotherapy were used in first-line treatment. With an overall response rate (ORR) of 10/21 (48%), only 9/21 (43%) went on to receive second-line treatment with an ORR of 4/9 (44%). The progression-free survival (PFS) with first-line treatment (PFS1) was a median of 5 months. The median PFS1 was worst for MEC. The median overall survival (OS) was 10 months. Median OS for ACC, SDC and MEC were 11, 10 and 7 months, respectively. At 24 months, ACC had much higher survival (50%) than others (10%) indicating a proportion of ACC with an indolent course. Conclusion Our analysis highlights the variable disease biology of advanced salivary gland tumours and throws light on the various possible treatment targets and strategies. Molecular profiling and advancement in targeted therapies are expected to increase survival in this group of rare cancers.
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Affiliation(s)
- Bipinesh Sansar
- Department of Medical Oncology, HBCH and MPMMCC, Varanasi 221005, India
| | - Neha Singh
- Department of Pathology, HBCH and MPMMCC, Varanasi 221005, India
| | - Anuj Gupta
- Department of Medical Oncology, HBCH and MPMMCC, Varanasi 221005, India
| | | | - Abhishek Sharma
- Department of Medical Oncology, HBCH and MPMMCC, Varanasi 221005, India
| | - Rahul Rai
- Department of Medical Oncology, HBCH and MPMMCC, Varanasi 221005, India
| | - Pooja Gupta
- Department of Medical Oncology, HBCH and MPMMCC, Varanasi 221005, India
| | - Akhil Kapoor
- Department of Medical Oncology, HBCH and MPMMCC, Varanasi 221005, India
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Kurtz MA, Yang R, Elapolu MSR, Wessinger AC, Nelson W, Alaniz K, Rai R, Gilbert JL. Predicting Corrosion Damage in the Human Body Using Artificial Intelligence: In Vitro Progress and Future Applications. Orthop Clin North Am 2023; 54:169-192. [PMID: 36894290 DOI: 10.1016/j.ocl.2022.11.004] [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: 03/11/2023]
Abstract
Artificial intelligence (AI) is used in the clinic to improve patient care. While the successes illustrate AI's impact, few studies have led to improved clinical outcomes. In this review, we focus on how AI models implemented in nonorthopedic fields of corrosion science may apply to the study of orthopedic alloys. We first define and introduce fundamental AI concepts and models, as well as physiologically relevant corrosion damage modes. We then systematically review the corrosion/AI literature. Finally, we identify several AI models that may be implemented to study fretting, crevice, and pitting corrosion of titanium and cobalt chrome alloys.
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Affiliation(s)
- Michael A Kurtz
- Department of Bioengineering, Clemson University, Clemson, SC, USA; The Clemson University-Medical University of South Carolina Bioengineering Program, 68 President Street, Charleston, SC 29425, USA
| | - Ruoyu Yang
- Department of Automotive Engineering, Clemson University, 4 Research Drive, Greenville, SC 29607, USA
| | - Mohan S R Elapolu
- Department of Automotive Engineering, Clemson University, 4 Research Drive, Greenville, SC 29607, USA
| | - Audrey C Wessinger
- Department of Bioengineering, Clemson University, Clemson, SC, USA; The Clemson University-Medical University of South Carolina Bioengineering Program, 68 President Street, Charleston, SC 29425, USA
| | - William Nelson
- Department of Bioengineering, Clemson University, Clemson, SC, USA; The Clemson University-Medical University of South Carolina Bioengineering Program, 68 President Street, Charleston, SC 29425, USA
| | - Kazzandra Alaniz
- Department of Bioengineering, Clemson University, Clemson, SC, USA; The Clemson University-Medical University of South Carolina Bioengineering Program, 68 President Street, Charleston, SC 29425, USA
| | - Rahul Rai
- Department of Automotive Engineering, Clemson University, 4 Research Drive, Greenville, SC 29607, USA
| | - Jeremy L Gilbert
- Department of Bioengineering, Clemson University, Clemson, SC, USA; The Clemson University-Medical University of South Carolina Bioengineering Program, 68 President Street, Charleston, SC 29425, USA.
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Jaafar MM, Mohd Razip Wee MF, Nguyen HTN, Hieu LT, Rai R, Sahoo AK, Dee CF, Chang EY, Yeop Majlis B, Tee CATH. Surface Acoustic Wave Propagation of GaN/Sapphire Integrated with a Gold Guiding Layer. Sensors (Basel) 2023; 23:2464. [PMID: 36904668 PMCID: PMC10007255 DOI: 10.3390/s23052464] [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] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 02/12/2023] [Accepted: 02/14/2023] [Indexed: 06/18/2023]
Abstract
Gallium nitride (GaN), widely known as a wide bandgap semiconductor material, has been mostly employed in high power devices, light emitting diodes (LED), and optoelectronic applications. However, it could be exploited differently due to its piezoelectric properties, such as its higher SAW velocity and strong electromechanical coupling. In this study, we investigated the affect of the presence of a guiding layer made from titanium/gold on the surface acoustic wave propagation of the GaN/sapphire substrate. By fixing the minimum thickness of the guiding layer at 200 nm, we could observe a slight frequency shift compared to the sample without a guiding layer, with the presence of different types of surface mode waves (Rayleigh and Sezawa). This thin guiding layer could be efficient in transforming the propagation modes, acting as a sensing layer for the binding of biomolecules to the gold layer, and influencing the output signal in terms of frequency or velocity. The proposed GaN/sapphire device integrated with a guiding layer could possibly be used as a biosensor and in wireless telecommunication applications.
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Affiliation(s)
- Muhammad Musoddiq Jaafar
- College of Physics and Electrical Information Engineering, Zhejiang Normal University, Jinhua 321017, China
- Institute of Microengineering and Nanoelectronics, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia
- International College of Semiconductor Technology, National Chiao Tung University, University Road, Hsinchu 30010, Taiwan
| | | | - Hoang-Tan-Ngoc Nguyen
- International College of Semiconductor Technology, National Chiao Tung University, University Road, Hsinchu 30010, Taiwan
| | - Le Trung Hieu
- Department of Materials Science and Engineering, National Chiao Tung University, University Road, Hsinchu 30010, Taiwan
| | - Rahul Rai
- International College of Semiconductor Technology, National Chiao Tung University, University Road, Hsinchu 30010, Taiwan
| | - Ashish Kumar Sahoo
- International College of Semiconductor Technology, National Chiao Tung University, University Road, Hsinchu 30010, Taiwan
| | - Chang Fu Dee
- Institute of Microengineering and Nanoelectronics, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia
| | - Edward Yi Chang
- International College of Semiconductor Technology, National Chiao Tung University, University Road, Hsinchu 30010, Taiwan
- Department of Materials Science and Engineering, National Chiao Tung University, University Road, Hsinchu 30010, Taiwan
- Department of Electronics Engineering, National Chiao Tung University, University Road, Hsinchu 30010, Taiwan
| | - Burhanuddin Yeop Majlis
- Institute of Microengineering and Nanoelectronics, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia
| | - Clarence Augustine TH Tee
- College of Physics and Electrical Information Engineering, Zhejiang Normal University, Jinhua 321017, China
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7
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Patil VM, Noronha V, Menon N, Singh A, Ghosh-Laskar S, Budrukkar A, Bhattacharjee A, Swain M, Mathrudev V, Nawale K, Balaji A, Peelay Z, Alone M, Pathak S, Mahajan A, Kumar S, Purandare N, Agarwal A, Puranik A, Pendse S, Reddy Yallala M, Sahu H, Kapu V, Dey S, Choudhary J, Krishna MR, Shetty A, Karuvandan N, Ravind R, Rai R, Jobanputra K, Chaturvedi P, Pai PS, Chaukar D, Nair S, Thiagarajan S, Prabhash K. Results of Phase III Randomized Trial for Use of Docetaxel as a Radiosensitizer in Patients With Head and Neck Cancer, Unsuitable for Cisplatin-Based Chemoradiation. J Clin Oncol 2023; 41:2350-2361. [PMID: 36706347 DOI: 10.1200/jco.22.00980] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
PURPOSE There is a lack of published literature on systemic therapeutic options in cisplatin-ineligible patients with locally advanced head and neck squamous cell carcinoma (LAHNSCC) undergoing chemoradiation. Docetaxel was assessed as a radiosensitizer in this situation. METHODS This was a randomized phase II/III study. Adult patients (age ≥ 18 years) with LAHNSCC planned for chemoradiation and an Eastern Cooperative Oncology Group performance status of 0-2 and who were cisplatin-ineligible were randomly assigned in 1:1 to either radiation alone or radiation with concurrent docetaxel 15 mg/m2 once weekly for a maximum of seven cycles. The primary end point was 2-year disease-free survival (DFS). RESULTS The study recruited 356 patients between July 2017 and May 2021. The 2-year DFS was 30.3% (95% CI, 23.6 to 37.4) versus 42% (95% CI, 34.6 to 49.2) in the RT and Docetaxel-RT arms, respectively (hazard ratio, 0.673; 95% CI, 0.521 to 0.868; P value = .002). The corresponding median overall survival (OS) was 15.3 months (95% CI, 13.1 to 22.0) and 25.5 months (95% CI, 17.6 to 32.5), respectively (log-rank P value = .035). The 2-year OS was 41.7% (95% CI, 34.1 to 49.1) versus 50.8% (95% CI, 43.1 to 58.1) in the RT and Docetaxel-RT arms, respectively (hazard ratio, 0.747; 95% CI, 0.569 to 0.980; P value = .035). There was a higher incidence of grade 3 or above mucositis (22.2% v 49.7%; P < .001), odynophagia (33.5% v 52.5%; P < .001), and dysphagia (33% v 49.7%; P = .002) with the addition of docetaxel. CONCLUSION The addition of docetaxel to radiation improved DFS and OS in cisplatin-ineligible patients with LAHNSCC.[Media: see text].
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Affiliation(s)
- Vijay Maruti Patil
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Vanita Noronha
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Nandini Menon
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Ajay Singh
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Sarbani Ghosh-Laskar
- Department of Radiation Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Ashwini Budrukkar
- Department of Radiation Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Atanu Bhattacharjee
- Leicester Real World Evidence Unit, Leicester University, Leicester, United Kingdom
| | - Monali Swain
- Department of Radiation Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Vijayalakshmi Mathrudev
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Kavita Nawale
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Arun Balaji
- Department of Speech and Therapy, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Zoya Peelay
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Mitali Alone
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Shruti Pathak
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Abhishek Mahajan
- Department of Radiology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Suman Kumar
- Department of Radiology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Nilendu Purandare
- Department of Nuclear Medicine, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Archi Agarwal
- Department of Nuclear Medicine, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Ameya Puranik
- Department of Nuclear Medicine, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Shantanu Pendse
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Monica Reddy Yallala
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Harsh Sahu
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Venkatesh Kapu
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Sayak Dey
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Jatin Choudhary
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Madala Ravi Krishna
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Alok Shetty
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Naveen Karuvandan
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Rahul Ravind
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Rahul Rai
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Kunal Jobanputra
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Pankaj Chaturvedi
- Department of Head and Neck Surgery, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Prathamesh S Pai
- Department of Head and Neck Surgery, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Devendra Chaukar
- Department of Head and Neck Surgery, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Sudhir Nair
- Department of Head and Neck Surgery, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Shivakumar Thiagarajan
- Department of Head and Neck Surgery, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Kumar Prabhash
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
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Patil VM, Noronha V, Menon N, Rai R, Bhattacharjee A, Singh A, Nawale K, Jogdhankar S, Tambe R, Dhumal S, Sawant R, Alone M, Karla D, Peelay Z, Pathak S, Balaji A, Kumar S, Purandare N, Agarwal A, Puranik A, Mahajan A, Janu A, Kumar Singh G, Mittal N, Yadav S, Banavali S, Prabhash K. Low-Dose Immunotherapy in Head and Neck Cancer: A Randomized Study. J Clin Oncol 2023; 41:222-232. [PMID: 36265101 DOI: 10.1200/jco.22.01015] [Citation(s) in RCA: 48] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
PURPOSE The regimens approved for the treatment of advanced head and neck squamous cell carcinoma are accessible to only 1%-3% of patients in low- and middle-income countries because of their cost. In our previous study, metronomic chemotherapy improved survival in this setting. Retrospective data suggest that a low dose of nivolumab may be efficacious. Hence, we aimed to assess whether the addition of low-dose nivolumab to triple metronomic chemotherapy (TMC) improved overall survival (OS). METHODS This was a randomized phase III superiority study. Adult patients with recurrent or newly diagnosed advanced head and neck squamous cell carcinoma being treated with palliative intent with an Eastern Cooperative Oncology Group performance status of 0-1 were eligible. Patients were randomly assigned 1:1 to TMC consisting of oral methotrexate 9 mg/m2 once a week, celecoxib 200 mg twice daily, and erlotinib 150 mg once daily, or TMC with intravenous nivolumab (TMC-I) 20 mg flat dose once every 3 weeks. The primary end point was 1-year OS. RESULTS One hundred fifty-one patients were randomly assigned, 75 in TMC and 76 in the TMC-I arm. The addition of low-dose nivolumab led to an improvement in the 1-year OS from 16.3% (95% CI, 8.0 to 27.4) to 43.4% (95% CI, 30.8 to 55.3; hazard ratio, 0.545; 95% CI, 0.362 to 0.820; P = .0036). The median OS in TMC and TMC-I arms was 6.7 months (95% CI, 5.8 to 8.1) and 10.1 months (95% CI, 7.4 to 12.6), respectively (P = .0052). The rate of grade 3 and above adverse events was 50% and 46.1% in TMC and TMC-I arms, respectively (P = .744). CONCLUSION To our knowledge, this is the first-ever randomized study to demonstrate that the addition of low-dose nivolumab to metronomic chemotherapy improved OS and is an alternative standard of care for those who cannot access full-dose checkpoint inhibitors.
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Affiliation(s)
- Vijay Maruti Patil
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Vanita Noronha
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Nandini Menon
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Rahul Rai
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Atanu Bhattacharjee
- Section of Biostatistics, Center for Cancer Epidemiology, Tata Memorial Center, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Ajay Singh
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Kavita Nawale
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Shweta Jogdhankar
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Rupali Tambe
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Sachin Dhumal
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Riddhi Sawant
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Mitali Alone
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Devanshi Karla
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Zoya Peelay
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Shruti Pathak
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Arun Balaji
- Department of Speech and Therapy, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Suman Kumar
- Department of Radiology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Nilendu Purandare
- Department of Nuclear Medicine, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Archi Agarwal
- Department of Nuclear Medicine, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Ameya Puranik
- Department of Nuclear Medicine, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Abhishek Mahajan
- Department of Radiology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Amit Janu
- Department of Radiology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Gunjesh Kumar Singh
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Neha Mittal
- Department of Pathology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Subhash Yadav
- Department of Pathology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Shripad Banavali
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Kumar Prabhash
- Department of Medical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute (HBNI), Mumbai, India
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Zhang Z, Zhu Y, Rai R, Doermann D. PIMNet: Physics-Infused Neural Network for Human Motion Prediction. IEEE Robot Autom Lett 2022. [DOI: 10.1109/lra.2022.3188892] [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] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zhibo Zhang
- Manufacturing and Design Lab (MADLab), Department of Mechanical and Aerospace Engineering, University at Buffalo, Buffalo, NY, USA
| | - Yanjun Zhu
- Artificial Intelligence Innovation Lab (A2IL), Department of Computer Science and Engineering, University at Buffalo, Buffalo, NY, USA
| | - Rahul Rai
- Geometric Reasoning and Artificial Intelligence Lab (GRAIL), Clemson University, Greenville, SC, USA
| | - David Doermann
- Artificial Intelligence Innovation Lab (A2IL), Department of Computer Science and Engineering, University at Buffalo, Buffalo, NY, USA
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Farahani L, Mowla S, Tharakan T, Lee Y, Kundu S, Khanjani S, Sindi E, Rai R, Regan L, Ramsay J, Bennett P, Dhillo W, Minhas S, Jayasena C, MacIntyre D. O-252 Next generation sequencing analysis of the seminal microbiome in male partners of women with idiopathic recurrent pregnancy loss: results of a prospective cohort study. Hum Reprod 2022. [DOI: 10.1093/humrep/deac106.034] [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] Open
Abstract
Abstract
Study question
Is there an association between the semen microbiome, seminal reactive oxygen species (ROS) and DNA fragmentation in men with recurrent pregnancy loss (RPL)?
Summary answer
This pilot study outlines the subtle role that microbiota play in influencing ROS and sperm DNA damage for male partners of women with RPL
What is known already
RPL is defined as the loss of two or more consecutive pregnancies. This devastating condition impacts approximately 1% of couples. Paternal causes are not routinely screened for and an underlying cause is not found in up to 50% of cases. Recent studies have reported an association between elevated seminal ROS and sperm DNA fragmentation in the male partner, and RPL. We hypothesised that seminal microbiota contribute to increased ROS and sperm DNA damage. To test this, we investigated the relationship between seminal bacterial composition and ROS levels in men with proven fertility versus men with a history of RPL.
Study design, size, duration
We conducted a prospective, case-control study and recruited participants between November 2018 and March 2020 at Imperial College Healthcare NHS Trust. A total of 109 men participated in the study; 46 men with RPL and 63 men with proven fertility and no history of RPL. Each participant attended for a single study visit which consisted of a full medical history, assessment of testicular volume, height, weight, blood samples and production of a semen sample.
Participants/materials, setting, methods
Routine semen analysis (WHO) and endocrine and lipid profiles were performed for all patients. Semen ROS and DNA fragmentation were performed (luminol and TUNEL methodologies, respectively). ROS were classified as high (>3.77 RLU/s) or low (<3.77 RLU/s). Metataxonomic profiling of samples was performed using Illumina Miseq-based sequencing of the V1-V2 hypervariable regions of bacterial 16S rRNA gene amplicons. Multivariate and univariate modelling was performed to explore associations between metataxonomic profiles, ROS levels and clinical metadata.
Main results and the role of chance
Men with RPL had higher mean semen volume (p = 0.02) and increased prevalence of high ROS (p = 0.02, Fisher's exact) compared with controls; but other clinical characteristics were similar between groups. A total of 3,700,136 high quality sequence reads were generated for the dataset with an average of 33,946 reads/sample. Hierarchical clustering of bacterial genera relative abundances identified 4 distinct microbial signatures characterised by high relative abundance of 1. Streptococcus, 2. Lactobacillus and Gardnerella, 3. polymicrobial (including Prevotella), and 4. Corynebacterium and Finegoldia. Prevalences of these groups were similar in control and RPL groups (p = 0.11). Additionally, no association between the bacterial genera groups and elevated ROS, DNA fragmentation, or clinical factors such as age, ethnicity, or semen volume were observed (chi-square tests). At species taxonomy level relative abundance of L. crispatus was higher in controls compared to RPL, but did not withstand false discovery rate correction for multiple testing (p = 0.006, q = 0.67). Higher relative abundance of Microbacterium was detected in semen samples with high DNA fragmentation (p = 8.7E-4, q = 0.08). This relationship was even stronger within the RPL cohort (p = 2.8E-5, q = 0.002). No significant enrichment of specific taxa was observed between high or low ROS samples however, low ROS was associated with Corynebacterium relative abundance >20%.
Limitations, reasons for caution
More patients are required to enhance statistical power. Duplicate sample collection may establish the robustness of seminal compositions observed. Time since last sexual intercourse samples may affect the analysis. Concomitant analysis of the vaginal microbiome of female partners may improve our understanding of how partners may affect each other’s fertility.
Wider implications of the findings
Our data suggests interactions between microbiota composition, ROS and sperm DNA damage which may be implicated in the pathogenesis of recurrent miscarriage. Further studies are needed to determine if seminal microbiota play causal roles in RPL, and whether interventions modifying the seminal microbiome may modify pregnancy outcomes in affected couples
Trial registration number
not applicable
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Affiliation(s)
- L Farahani
- Imperial College Healthcare NHS Trust, Obstetrics & Gynaecology , London, United Kingdom
| | - S Mowla
- Imperial College, Institute of Reproductive Developmental Biology , London, United Kingdom
| | - T Tharakan
- Charing Cross Hospital , Urology, London, United Kingdom
| | - Y Lee
- Imperial College, Institute of Reproductive Developmental Biology , London, United Kingdom
| | - S Kundu
- Imperial College, Institute of Reproductive Developmental Biology , London, United Kingdom
| | - S Khanjani
- University College London Hospital , Gynaecology, London, United Kingdom
| | - E Sindi
- Imperial College, Section of Investigative Medicine , London, United Kingdom
| | - R Rai
- Imperial College Healthcare NHS Trust, Obstetrics & Gynaecology , London, United Kingdom
| | - L Regan
- Imperial College Healthcare NHS Trust, Obstetrics & Gynaecology , London, United Kingdom
| | - J Ramsay
- Hammersmith Hospital , Andrology, London, United Kingdom
| | - P Bennett
- Imperial College, Institute of Reproductive Developmental Biology , London, United Kingdom
| | - W Dhillo
- Imperial College, Section of Investigative Medicine , London, United Kingdom
| | - S Minhas
- Charing Cross Hospital , Urology, London, United Kingdom
| | - C Jayasena
- Imperial College, Section of Investigative Medicine , London, United Kingdom
| | - D MacIntyre
- Imperial College, Institute of Reproductive Developmental Biology , London, United Kingdom
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Patil V, Alone M, Rai R, Noronha V, Menon N, Prabhash K. Safety and efficacy of pembrolizumab with chemotherapy in locally advanced head and neck cancers. Oral Oncol 2022; 127:105824. [DOI: 10.1016/j.oraloncology.2022.105824] [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] [Received: 01/29/2022] [Revised: 03/11/2022] [Accepted: 03/12/2022] [Indexed: 11/28/2022]
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12
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Prameela M, Prabhu LV, Murlimanju B, Pai MM, Rai R, Ganesh Kumar C. Morphological Variants of the Abductor Pollicis Longus and Extensor Pollicis Brevis Tendons. A Cadaveric Study. Muscles Ligaments Tendons J 2022. [DOI: 10.32098/mltj.01.2022.10] [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: 11/05/2022]
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Tyagi N, Kureel S, Gupta A, Singh G, Rai R, Pant N. Study the Possibility of Creating Mucosal Valve Mechanism at Ureteric Orifice without Obstructing the Urine Outflow but Preventing the Urine Backflow into the Ureters. J Indian Assoc Pediatr Surg 2022; 27:462-465. [PMID: 36238334 PMCID: PMC9552644 DOI: 10.4103/jiaps.jiaps_143_21] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 03/14/2022] [Accepted: 04/16/2022] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE To study the possibility of creating mucosal valve mechanism at ureteric orifice without obstructing the urine outflow but preventing the urine backflow into the ureters. MATERIALS AND METHODS Ethical waiver was obtained from the institutional ethical committee. Prospective experimental study was conducted on the post-mortem specimen of intact bladder with urethra and bilateral ureters retrieved from the already slaughtered lamb available in the meat market. Feeding tube inserted via urethral opening into the bladder lumen and bladder inflated with saline demonstrated no reflux of urine via transverse cut opening of ureters. Bladder lumen opened, ureteric orifices incised backwards to eliminate the obliquity. After closing the bladder opening, saline inflation test demonstrated bilateral reflux of saline via cut openings of bilateral ureters. Bladder was re-opened. The upper limb of horizontal U started 10 mm lateral and 8 mm above the refluxing ureteric orifice. Distal most curvature of horizontal U was kept 5 mm medial to ureteric orifice continuing along the lower limb of horizontal U terminating 10 mm lateral and 8 mm below the refluxing ureteric orifice, mucosal flaps from superior and inferior incision mobilized and edges joined to cover the ureteric orifice creating a flap valve mechanism. Influx of saline via cut end of ureters demonstrated no obstruction. Bladder was closed. Saline inflation test and contrast study demonstrated abolition of reflux on flap side and persistence of reflux on another side. RESULTS Five such experiments were conducted. On the side where the valve was created, Vesicoureteral reflux was abolished in four but in one minimal reflux still persisted. CONCLUSION Creating a mucosal flap valve around the ureteric orifice can prevent reflux in 80% of cases without obstruction and without the necessity of ureteric mobilization or creating submucosal tunnel.
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Affiliation(s)
- Nirpex Tyagi
- Department of Pediatric Surgery, King George's Medical University, Lucknow, Uttar Pradesh, India,Address for correspondence: Dr. Nirpex Tyagi, King George's Medical University, Lucknow, Uttar Pradesh, India. E-mail:
| | - Shiv Kureel
- Department of Pediatric Surgery, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Archika Gupta
- Department of Pediatric Surgery, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Gurmeet Singh
- Department of Pediatric Surgery, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Rahul Rai
- Department of Pediatric Surgery, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Nitin Pant
- Department of Pediatric Surgery, King George's Medical University, Lucknow, Uttar Pradesh, India
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14
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Falk GL, Phillips S, Rai R, Corke P. Comment on: Multimodal analgesia with thoracic epidural after transthoracic oesophagectomy: Do we need more evidence? Br J Surg 2021; 108:e387. [PMID: 34418050 DOI: 10.1093/bjs/znab269] [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] [Received: 06/10/2021] [Accepted: 06/30/2021] [Indexed: 11/14/2022]
Abstract
This article is a response to the publication ‘Comparison of multimodal analgesia with thoracic epidural after transthoracic oesophagectomy’. It discuss the differing outcomes from using this technique in other publications.
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Affiliation(s)
- G L Falk
- Department of Upper Gastro -Intestinal Surgery, Concord Repatriation General Hospital, Sydney, NSW, Australia
| | - S Phillips
- University of Sydney, Sydney Adventist Hospital Wahroonga, Sydney, NSW, Australia
| | - R Rai
- Department of Anaesthesia, Concord Repatriation General Hospital, Sydney, NSW, Australia
| | - P Corke
- Acute Pain Service, Concord Repatriation General Hospital, Sydney, NSW, Australia
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Rai R, Dhull P, Kumar Y, Gill S, Mohimen A, Nachankar AS. Epilepsia Partialis Continua in Hyperosmolar Nonketotic Hyperglycemia. J Neurosci Rural Pract 2021; 12:817-820. [PMID: 34737526 PMCID: PMC8558921 DOI: 10.1055/s-0041-1734004] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Affiliation(s)
- Rahul Rai
- Department of Medicine, Command Hospital, Lucknow, Uttar Pradesh, India
| | - Pawan Dhull
- Department of Neurology, Command Hospital, Lucknow, Uttar Pradesh, India
| | - Yogesh Kumar
- Department of Endocrinology, Command Hospital, Lucknow, Uttar Pradesh, India
| | - Shaman Gill
- Department of Neurology, Command Hospital, Lucknow, Uttar Pradesh, India
| | - Aneesh Mohimen
- Department of Radiodiagnosis, Command Hospital, Lucknow, Uttar Pradesh, India
| | - Amit S Nachankar
- Department of Endocrinology, Command Hospital, Lucknow, Uttar Pradesh, India
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16
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Rai R, Patel F, Melana S, Feld J, Navada S, Odchimar-Reissig R, Demakos E, Reddy E, Silverman L. Topic: AS04-MDS Biology and Pathogenesis/AS04f-Gene expression profiling. Leuk Res 2021. [DOI: 10.1016/j.leukres.2021.106681.26] [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: 10/20/2022]
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Balfoussia D, Salim R, Rai R. P–635 Standard versus mild ovarian stimulation in women with polycystic ovaries (PCO): Impact on outcomes in subsequent frozen embryo treatment cycles (FET). Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.634] [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] Open
Abstract
Abstract
Study question
Does mild ovarian stimulation in women with PCO result in higher live birth rates during subsequent FET cycles?
Summary answer
Mild ovarian stimulation with FSH doses <150IU did not result in higher clinical pregnancy or livebirth rates in subsequent FET.
What is known already
Ovarian stimulation during IVF in women with PCO is associated with an exaggerated response, ovarian hyperstimulation syndrome, poor egg to follicle ratio, low fertilisation rates and poor blastocyst conversion. Mild ovarian stimulation, often referred to as protocols with FSH doses under 150IU, is often employed to overcome these challenges. One of the perceived benefits of this approach is improved oocyte and embryo quality reflected in lower aneuploidy rates.
Study design, size, duration
This was a retrospective observational study looking at 99 FET between January 2011 and Jan 2021 that followed a fresh cycle in women with a pre-treatment antral follicle count of 12 + 12 or greater. Patients were identified through the antral follicle count at the pre-treatment investigation ultrasound scan. Ultrasound findings, treatment cycle details and clinical outcomes were entered prospectively into a dedicated clinic database. Data was retrieved and analysed using SPSS V25.
Participants/materials, setting, methods
The study was conducted in a large IVF centre. Data on women with an AFC of 12 + 12 or above, undergoing an autologous FET cycle following a fresh cycle were collected. Women were split into those receiving <150IU of FSH (Group1, n = 51) and those receiving FSH ³150 IU (Group 2, n = 48). Binary logistic regression analysis was performed to control for confounders. Live birth was the primary outcome, with biochemical and clinical pregnancy being secondary outcomes.
Main results and the role of chance
Women in Group 1 were younger (30.8±3.6 v 33.8±3.65, p < 0.005) but had a similar antral follicle count (38.2±11.7 v 34.2±9.1, p = 0.07). The total number of eggs collected (24.1±13.8 v 25.9±8.8, p = 0.45) and fertilisation rate (0.59±0.2 v 0.58±0.18, p = 0.77) during their fresh cycle were comparable. Women in Group 2 had a larger number of embryos suitable for cryopreservation (7.36±4.2 v 4.8±3.5, p = 0.001)
In the subsequent frozen embryo replacement cycle, there was no difference in the number or quality of embryos transferred with most women having a single embryo transfer (63% v 48%, p = 0.14) and at least one top quality embryo transferred (68.6% v 81%, p = 0.15). There was a higher biochemical pregnancy rate in Group 1 (84% v 66%, p = 0.035) but with no difference in clinical pregnancy rate (53% v 44%, p = 0.37) or live birth rate (49% v 42%, p = 0.76). Live birth rates remained comparable even after controlling for age, and number and quality of embryos transferred (OR: 1.21 (95% CI 0.50–2.94).
Limitations, reasons for caution
This was a retrospective analysis raising the risk of allocation bias. This study was also at risk of information bias as it relied on accurate documentation of the AFC at the pre-treatment scan.
Wider implications of the findings: Patients can be reassured that both stimulation protocols result in similar live birth rates in subsequent frozen embryo replacement cycles.
Prospective trials using PGT-A are required to assess whether aneuploidy could account for the discrepancy in biochemical pregnancy rates in the two groups considering the subsequent comparable clinical pregnancy rates.
Trial registration number
Not applicable
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Affiliation(s)
- D Balfoussia
- Imperial College Healthcare NHS Trust, Obstetrics and Gynaecology- St Mary’s Hospital, London, United Kingdom
| | - R Salim
- Imperial College Healthcare NHS Trust, Wolfson Fertility Centre, London, United Kingdom
| | - R Rai
- Imperial College Healthcare NHS Trust, Wolfson Fertility Centre, London, United Kingdom
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Buckley JG, Dowling JA, Sidhom M, Liney GP, Rai R, Metcalfe PE, Holloway LC, Keall PJ. Pelvic organ motion and dosimetric implications during horizontal patient rotation for prostate radiation therapy. Med Phys 2020; 48:397-413. [PMID: 33151543 DOI: 10.1002/mp.14579] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 10/09/2020] [Accepted: 10/26/2020] [Indexed: 12/12/2022] Open
Abstract
PURPOSE Gantry-free radiation therapy systems utilizing patient rotation would be simpler and more cost effective than the conventional gantry-based systems. Such a system could enable the expansion of radiation therapy to meet global demand and reduce capital costs. Recent advances in adaptive radiation therapy could potentially be applied to correct for gravitational deformation during horizontal patient rotation. This study aims to quantify the pelvic organ motion and the dosimetric implications of horizontal rotation for prostate intensity-modulated radiation therapy (IMRT) treatments. METHODS Eight human participants who previously received prostate radiation therapy were imaged in a clinical magnetic resonance imaging (MRI) scanner using a bespoke patient rotation system (PRS). The patients were imaged every 45 degrees during a full roll rotation (0-360 degrees). Whole pelvic bone, prostate, rectum, and bladder motion were compared to the supine position using dice similarity coefficient (DSC) and mean absolute surface distance (MASD). Prostate centroid motion was compared in the left-right (LR), superior-inferior (SI), and anterior-posterior (AP) direction prior to and following pelvic bone-guided rigid registration. Seven-field prostate IMRT treatment plans were generated for each patient rotation angles under three adaption scenarios: No plan adaption, rigid planning target volume (PTV)-guided alignment to the prostate, and plan re-optimization. Prostate, rectum, and bladder doses were compared for each adaption scenario. RESULTS Pelvic bone motion within the PRS of up to 53 mm relative to the supine position was observed for some participants. Internal organ motion was greatest at the 180-degree PRS couch angle (prone), with prostate centroid motion range < 2 mm LR, 0 mm to 14 mm SI, and -11 mm to 4 mm AP. Rotation with no adaption of the treatment plan resulted in an underdose to the PTV -- in some instances up to 75% (D95%: 78 ± 0.3 Gy at supine to 20 ± 15.0 Gy at the 225-degree PRS couch angle). Bladder dose was reduced during the rotation by up to 98% (V60 Gy: 15.0 ± 9.4% supine to 0.3 ± 0.5% at the 225-degree PRS couch angle). In some instances, the rectum dose increased during rotation (V60Gy: 20.0 ± 4.5% supine to 25.0 ± 15.0% at the 135-degree PRS couch angle). Rigid PTV-guided alignment resulted in PTV coverage which, though statistically lower (P < 0.05 for all D95% values), was within 1 Gy of the supine plans. Plan re-optimization resulted in a statistically equivalent PTV coverage compared to the supine plans (P > 0.05 for all D95% metrics and all within ±0.4 Gy). For both rigid PTV-guided alignment and plan re-optimization, rectum dose volume metrics were reduced compared to the supine position between the 90- and 225-degree PRS couch angles (P < 0.05). Bladder dose volume metrics were not impacted by rotation. CONCLUSION Pelvic bone and internal organ motion are present during patient rotation. Rigid PTV-guided alignment to the prostate will be a requirement if prostate IMRT is to be safely delivered using patient rotation. Plan re-optimization for each PRS couch angle to account for anatomical deformations further improves the PTV coverage.
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Affiliation(s)
- J G Buckley
- Centre for Medical Radiation Physics, University of Wollongong, Wollongong, NSW, Australia
- Ingham Institute for Applied Medical Research, Liverpool, NSW, Australia
| | - J A Dowling
- Centre for Medical Radiation Physics, University of Wollongong, Wollongong, NSW, Australia
- CSIRO Australian eHealth Research Centre, Herston, QLD, Australia
- School of Medicine, University of New South Wales, Sydney, NSW, Australia
| | - M Sidhom
- School of Medicine, University of New South Wales, Sydney, NSW, Australia
- Liverpool and Macarthur Cancer Therapy Centre, Sydney, NSW, Australia
| | - G P Liney
- Centre for Medical Radiation Physics, University of Wollongong, Wollongong, NSW, Australia
- Ingham Institute for Applied Medical Research, Liverpool, NSW, Australia
- School of Medicine, University of New South Wales, Sydney, NSW, Australia
- Liverpool and Macarthur Cancer Therapy Centre, Sydney, NSW, Australia
| | - R Rai
- Ingham Institute for Applied Medical Research, Liverpool, NSW, Australia
- Liverpool and Macarthur Cancer Therapy Centre, Sydney, NSW, Australia
| | - P E Metcalfe
- Centre for Medical Radiation Physics, University of Wollongong, Wollongong, NSW, Australia
- Ingham Institute for Applied Medical Research, Liverpool, NSW, Australia
| | - L C Holloway
- Centre for Medical Radiation Physics, University of Wollongong, Wollongong, NSW, Australia
- Ingham Institute for Applied Medical Research, Liverpool, NSW, Australia
- School of Medicine, University of New South Wales, Sydney, NSW, Australia
- Liverpool and Macarthur Cancer Therapy Centre, Sydney, NSW, Australia
- Institute of Medical Physics, University of Sydney, Sydney, NSW, Australia
| | - P J Keall
- Ingham Institute for Applied Medical Research, Liverpool, NSW, Australia
- ACRF Image-X Institute, School of Health Sciences, University of Sydney, Sydney, Australia
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Behjat A, Zeng C, Rai R, Matei I, Doermann D, Chowdhury S. A physics-aware learning architecture with input transfer networks for predictive modeling. Appl Soft Comput 2020. [DOI: 10.1016/j.asoc.2020.106665] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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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Yang R, Ahmed ZU, Schulthess UC, Kamal M, Rai R. Detecting functional field units from satellite images in smallholder farming systems using a deep learning based computer vision approach: A case study from Bangladesh. Remote Sens Appl 2020; 20:100413. [PMID: 33251327 PMCID: PMC7678380 DOI: 10.1016/j.rsase.2020.100413] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 09/02/2020] [Accepted: 09/09/2020] [Indexed: 11/02/2022]
Abstract
Improving agricultural productivity of smallholder farms (which are typically less than 2 ha) is key to food security for millions of people in developing nations. Knowledge of the size and location of crop fields forms the basis for crop statistics, yield forecasting, resource allocation, economic planning, and for monitoring the effectiveness of development interventions and investments. We evaluated three different full convolutional neural network (F-CNN) models (U-Net, SegNet, and DenseNet) with deep neural architecture to detect functional field boundaries from the very high resolution (VHR) WorldView-3 satellite imagery from Southern Bangladesh. The precision of the three F-CNN was up to 0.8, and among the three F-CNN models, the highest precision, recalls, and F-1 score was obtained using a DenseNet model. This architecture provided the highest area under the receiver operating characteristic (ROC) curve (AUC) when tested with independent images. We also found that 4-channel images (blue, green, red, and near-infrared) provided small gains in performance when compared to 3-channel images (blue, green, and red). Our results indicate the potential of using CNN based computer vision techniques to detect field boundaries of small, irregularly shaped agricultural fields.
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Affiliation(s)
- Ruoyu Yang
- Department of Mechanical and Aerospace Engineering, 240 Bell Hall, University at Buffalo, Buffalo, NY, 14260-4400, USA
| | - Zia U. Ahmed
- Research and Education in Energy, Environment and Water (RENEW) Institute, 112 Cook Hall, University at Buffalo, Buffalo, NY, 14260-1300, USA
| | - Urs C. Schulthess
- CIMMYT-Henan Collaborative Innovation Center, Henan Agricultural University, Zhengzhou, 450002, PR China
| | - Mustafa Kamal
- CIMMYT-Bangladesh, House 10/B, Road 53, Gulshan 2, Dhaka, 1212, Bangladesh
| | - Rahul Rai
- Department of Mechanical and Aerospace Engineering, 240 Bell Hall, University at Buffalo, Buffalo, NY, 14260-4400, USA
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Jiji P, Joy T, Murlimanju B, Pai M, Prabhu L, Rai R. An Anatomical Perspective of Ulnar Collateral Nerve with Reference to Nerve and Muscle Transfer Surgery. Muscles Ligaments Tendons J 2020. [DOI: 10.32098/mltj.03.2020.23] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- P.J. Jiji
- Department of Anatomy, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - T. Joy
- Department of Anatomy, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - B.V. Murlimanju
- Department of Anatomy, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - M.M. Pai
- Department of Anatomy, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - L.V. Prabhu
- Department of Anatomy, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - R. Rai
- Department of Anatomy, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, Karnataka, India
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Ali MM, Doumbouya MB, Louge T, Rai R, Karray MH. Ontology-based approach to extract product's design features from online customers’ reviews. COMPUT IND 2020. [DOI: 10.1016/j.compind.2019.103175] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Chikkala B, Rai R, Agarwal S, Naganathan S, Dey R, Gupta S. A randomized control trial of left versus right hepatic arterial anastomosis to right lobe graft in living donor liver transplant and its impact on biliary complications. Int J Surg 2020. [DOI: 10.1016/j.ijsu.2020.01.024] [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: 11/27/2022]
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Essel K, Benbrook D, Rai R, Chandra V. Sulforaphane as a Potential Therapeutic for Endometrial Cancer. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2019.11.092] [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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Rai R, Tonse M, Rai A, Dass P, Janardhanan J. A study on perforating peroneal artery. Muscles Ligaments Tendons J 2020. [DOI: 10.32098/mltj.01.2020.15] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- R. Rai
- Department of Anatomy, Kasturba Medical College Mangalore, Manipal Academy of Higher Education, Manipal, India
| | - M. Tonse
- Department of Anatomy, Kasturba Medical College Mangalore, Manipal Academy of Higher Education, Manipal, India
| | - A.R. Rai
- Department of Anatomy, Kasturba Medical College Mangalore, Manipal Academy of Higher Education, Manipal, India
| | - P.M. Dass
- Department of Anatomy, Kasturba Medical College Mangalore, Manipal Academy of Higher Education, Manipal, India
| | - J.P. Janardhanan
- Department of Anatomy, Kasturba Medical College Mangalore, Manipal Academy of Higher Education, Manipal, India
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Jameson M, Martin P, Aly F, Koh E, Rai R, Estall V, Liney G, Metcalfe P, Holloway L. OC-024: Changes in brain tumour perfusion and diffusion characteristic during treatment. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(20)30430-8] [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: 11/29/2022]
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Zhang B, Grant J, Bruckman LS, Wodo O, Rai R. Degradation Mechanism Detection in Photovoltaic Backsheets by Fully Convolutional Neural Network. Sci Rep 2019; 9:16119. [PMID: 31695076 PMCID: PMC6834571 DOI: 10.1038/s41598-019-52550-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 10/15/2019] [Indexed: 12/04/2022] Open
Abstract
Materials and devices age with time. Material aging and degradation has important implications for lifetime performance of materials and systems. While consensus exists that materials should be studied and designed for degradation, materials inspection during operation is typically performed manually by technicians. The manual inspection makes studies prone to errors and uncertainties due to human subjectivity. In this work, we focus on automating the process of degradation mechanism detection through the use of a fully convolutional deep neural network architecture (F-CNN). We demonstrate that F-CNN architecture allows for automated inspection of cracks in polymer backsheets from photovoltaic (PV) modules. The developed F-CNN architecture enabled an end-to-end semantic inspection of the PV module backsheets by applying a contracting path of convolutional blocks (encoders) followed by an expansive path of decoding blocks (decoders). First, the hierarchy of contextual features is learned from the input images by encoders. Next, these features are reconstructed to the pixel-level prediction of the input by decoders. The structure of the encoder and the decoder networks are thoroughly investigated for the multi-class pixel-level degradation type prediction for PV module backsheets. The developed F-CNN framework is validated by reporting degradation type prediction accuracy for the pixel level prediction at the level of 92.8%.
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Affiliation(s)
- Binbin Zhang
- Mechanical and Aerospace Engineering Department, University at Buffalo, Buffalo, USA
| | - Joydan Grant
- Mechanical Engineering Tuskegee University, Tuskegee, AL, USA
| | - Laura S Bruckman
- Department of Materials Science and Engineering, Case Western Reserve University, Cleveland, OH, USA
| | - Olga Wodo
- Mechanical and Aerospace Engineering Department, University at Buffalo, Buffalo, USA
- Materials Design and Innovation Department, University at Buffalo, Buffalo, USA
| | - Rahul Rai
- Mechanical and Aerospace Engineering Department, University at Buffalo, Buffalo, USA.
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Rai R, Bansal N. Correlation between Vitamin D and Carotid Artery Intima Media Thickness in Patients with Ischemic Stroke. Indian Heart J 2019. [DOI: 10.1016/j.ihj.2019.11.141] [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: 10/25/2022] Open
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Paliwal N, Jaiswal P, Tutino VM, Shallwani H, Davies JM, Siddiqui AH, Rai R, Meng H. Outcome prediction of intracranial aneurysm treatment by flow diverters using machine learning. Neurosurg Focus 2019; 45:E7. [PMID: 30453461 DOI: 10.3171/2018.8.focus18332] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 08/21/2018] [Indexed: 12/12/2022]
Abstract
OBJECTIVEFlow diverters (FDs) are designed to occlude intracranial aneurysms (IAs) while preserving flow to essential arteries. Incomplete occlusion exposes patients to risks of thromboembolic complications and rupture. A priori assessment of FD treatment outcome could enable treatment optimization leading to better outcomes. To that end, the authors applied image-based computational analysis to clinically FD-treated aneurysms to extract information regarding morphology, pre- and post-treatment hemodynamics, and FD-device characteristics and then used these parameters to train machine learning algorithms to predict 6-month clinical outcomes after FD treatment.METHODSData were retrospectively collected for 84 FD-treated sidewall aneurysms in 80 patients. Based on 6-month angiographic outcomes, IAs were classified as occluded (n = 63) or residual (incomplete occlusion, n = 21). For each case, the authors modeled FD deployment using a fast virtual stenting algorithm and hemodynamics using image-based computational fluid dynamics. Sixteen morphological, hemodynamic, and FD-based parameters were calculated for each aneurysm. Aneurysms were randomly assigned to a training or testing cohort in approximately a 3:1 ratio. The Student t-test and Mann-Whitney U-test were performed on data from the training cohort to identify significant parameters distinguishing the occluded from residual groups. Predictive models were trained using 4 types of supervised machine learning algorithms: logistic regression (LR), support vector machine (SVM; linear and Gaussian kernels), K-nearest neighbor, and neural network (NN). In the testing cohort, the authors compared outcome prediction by each model trained using all parameters versus only the significant parameters.RESULTSThe training cohort (n = 64) consisted of 48 occluded and 16 residual aneurysms and the testing cohort (n = 20) consisted of 15 occluded and 5 residual aneurysms. Significance tests yielded 2 morphological (ostium ratio and neck ratio) and 3 hemodynamic (pre-treatment inflow rate, post-treatment inflow rate, and post-treatment aneurysm averaged velocity) discriminants between the occluded (good-outcome) and the residual (bad-outcome) group. In both training and testing, all the models trained using all 16 parameters performed better than all the models trained using only the 5 significant parameters. Among the all-parameter models, NN (AUC = 0.967) performed the best during training, followed by LR and linear SVM (AUC = 0.941 and 0.914, respectively). During testing, NN and Gaussian-SVM models had the highest accuracy (90%) in predicting occlusion outcome.CONCLUSIONSNN and Gaussian-SVM models incorporating all 16 morphological, hemodynamic, and FD-related parameters predicted 6-month occlusion outcome of FD treatment with 90% accuracy. More robust models using the computational workflow and machine learning could be trained on larger patient databases toward clinical use in patient-specific treatment planning and optimization.
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Affiliation(s)
- Nikhil Paliwal
- Departments of1Mechanical & Aerospace Engineering.,2Canon Stroke and Vascular Research Center, University at Buffalo, the State University of New York, Buffalo, New York
| | | | - Vincent M Tutino
- 2Canon Stroke and Vascular Research Center, University at Buffalo, the State University of New York, Buffalo, New York.,4Biomedical Engineering, and
| | | | | | - Adnan H Siddiqui
- 2Canon Stroke and Vascular Research Center, University at Buffalo, the State University of New York, Buffalo, New York.,3Neurosurgery
| | - Rahul Rai
- Departments of1Mechanical & Aerospace Engineering
| | - Hui Meng
- Departments of1Mechanical & Aerospace Engineering.,4Biomedical Engineering, and
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Buckley JG, Rai R, Liney GP, Dowling JA, Holloway LC, Metcalfe PE, Keall PJ. Anatomical deformation due to horizontal rotation: towards gantry-free radiation therapy. ACTA ACUST UNITED AC 2019; 64:175014. [DOI: 10.1088/1361-6560/ab324c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Tang S, Koh E, Rai R, Otton J, Tran D, Delaney G, Holloway L, Schmitt B, Liney G. EP-1333 Myocardial changes detected using Cardiac MRI in left breast patients treated with Radiation. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31753-0] [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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Abstract
Background: The purpose of the present study was to assess the availability and quality of online information regarding sub-internships in orthopaedics among U.S. orthopaedic residency programs. Methods: Each U.S. orthopaedic surgery residency program web site was assessed for the following 4 criteria: any mention of a sub-internship offered by that program, contact information regarding the sub-internship, a list of learning objectives to be met by the rotating student during the sub-internship, and presence of a web page dedicated solely to the orthopaedic sub-internship. Each web site was given a sub-internship score (SI score) from 0 to 4 based on how many of the above criteria were met. Results: From the 151 analyzed U.S. orthopaedic surgery residency program web sites, 69 (46%) did not have any mention of a sub-internship and thus received a score of 0, 4 (3%) received a score of 1, 18 (12%) received a score of 2, 20 (13%) received a score of 3, and 40 (26%) received a score of 4. The average SI score was 1.05 for the community-based orthopaedic residency programs, compared with 1.98 for the university-based orthopaedic programs (p = 0.003). Subgroup analysis based on SI scores (0 vs. 1 to 4) revealed that the higher-score group (1 to 4) had a higher percentage of university-based programs than the lower-score (0) group (80% vs. 62%; p = 0.003) and was associated with a greater number of residents per program than the lower-score group (mean, 26.4 vs. 21.0; p = 0.04). There was a weak association between the SI score and the number of residents in a given program (R2 = 0.074, p = 0.0004). Conclusions: The availability and quality of online information regarding sub-internships offered at orthopaedic residency programs in the U.S. are variable. Nearly half of the programs did not have any available online information on their web sites regarding orthopaedic surgery sub-internships. Larger and university-based orthopaedic programs have more robust information regarding sub-internships than smaller and community-based programs. Clinical Relevance: There needs to be greater awareness and more uniformly accessible online information regarding orthopaedic surgery sub-internships for senior medical students seeking elective orthopaedic rotations prior to applying for residency training.
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Affiliation(s)
- Rahul Rai
- Rutgers New Jersey Medical School, Newark, NJ
| | - Sanjeev Sabharwal
- University of California San Francisco, San Francisco, California.,Benioff Children's Hospital of Oakland, Oakland, California
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Rai R, Sun T, Ramirez V, Lux E, Eren M, Vaughan DE, Ghosh AK. Acetyltransferase p300 inhibitor reverses hypertension-induced cardiac fibrosis. J Cell Mol Med 2019; 23:3026-3031. [PMID: 30710427 PMCID: PMC6433695 DOI: 10.1111/jcmm.14162] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [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: 10/21/2018] [Revised: 12/25/2018] [Accepted: 12/27/2018] [Indexed: 01/22/2023] Open
Abstract
Epigenetic dysregulation plays a crucial role in cardiovascular diseases. Previously, we reported that acetyltransferase p300 (ATp300) inhibitor L002 prevents hypertension‐induced cardiac hypertrophy and fibrosis in a murine model. In this short communication, we show that treatment of hypertensive mice with ATp300‐specific small molecule inhibitor L002 or C646 reverses hypertension‐induced left ventricular hypertrophy, cardiac fibrosis and diastolic dysfunction, without reducing elevated blood pressures. Biochemically, treatment with L002 and C646 also reverse hypertension‐induced histone acetylation and myofibroblast differentiation in murine ventricles. Our results confirm and extend the role of ATp300, a major epigenetic regulator, in the pathobiology of cardiac hypertrophy and fibrosis. Most importantly, we identify the efficacies of ATp300 inhibitors C646 and L002 in reversing hypertension‐induced cardiac hypertrophy and fibrosis, and discover new anti‐hypertrophic and anti‐fibrotic candidates.
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Affiliation(s)
- Rahul Rai
- Feinberg School of Medicine, Feinberg Cardiovascular and Renal Research Institute, Northwestern University, Chicago, IL
| | - Tianjiao Sun
- Feinberg School of Medicine, Feinberg Cardiovascular and Renal Research Institute, Northwestern University, Chicago, IL
| | - Veronica Ramirez
- Feinberg School of Medicine, Feinberg Cardiovascular and Renal Research Institute, Northwestern University, Chicago, IL
| | - Elizabeth Lux
- Feinberg School of Medicine, Feinberg Cardiovascular and Renal Research Institute, Northwestern University, Chicago, IL
| | - Mesut Eren
- Feinberg School of Medicine, Feinberg Cardiovascular and Renal Research Institute, Northwestern University, Chicago, IL
| | - Douglas E Vaughan
- Feinberg School of Medicine, Feinberg Cardiovascular and Renal Research Institute, Northwestern University, Chicago, IL
| | - Asish K Ghosh
- Feinberg School of Medicine, Feinberg Cardiovascular and Renal Research Institute, Northwestern University, Chicago, IL
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Femia G, Pender P, Tang S, Koh E, Delaney G, Thomas L, Holloway L, Rai R, Liney G, Otton J. Effects of Breast Radiotherapy on Right Ventricular Systolic Function. Heart Lung Circ 2019. [DOI: 10.1016/j.hlc.2019.06.264] [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: 11/16/2022]
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Tang S, Otton J, Koh E, Rai R, Delaney G, Tran D, Thomas L, Holloway L, Liney G. Longitudinal Results of Cardiac MRI Left Ventricular Mapping Following Tangential Left Breast Radiotherapy. Heart Lung Circ 2019. [DOI: 10.1016/j.hlc.2019.06.288] [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: 11/27/2022]
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Thapa BD, Regmi MC, Rai R. Risk Factors for Adverse Outcome in Pregnant Women with Obstructed Labor. Nepal j obstet gynaecol 2018. [DOI: 10.3126/njog.v13i1.21614] [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
Aims: The aim of the study was to assess the risk factors for adverse outcomes in pregnancy with obstructed labor.Methods: It was a prospective descriptive study conducted at BP Koirala Institute of Health sciences (BPKIHS).The patients with obstructed labour were managed and followed up until delivery and six weeks postpartum from Jan to Dec 2012.Results: There were 57 (0.6%) cases of obstructed labour out of 9500 deliveries. The main cause was cephalopelvic disproportion in 36 (63.2%). The majority of the cases were from rural areas, low socioeconomic status, non salaried and illiterate. Risk for maternal mortality, peripartum hysterectomy and perinatal mortality as adverse outcomes was significantly associated with low socioeconomic status (AOR 12.5, P=0.02) and literacy status (AOR 21.9, P=0.001). If only the risk of perinatal mortality is taken as an adverse outcome, it is significantly associated with booking status (AOR 7, P=0.001), low socioeconomic status (AOR 9.62, P=0.037) and literacy of the patient (AOR 15, P=0.001). Perinatal mortality rate was 100 per 1000 live births in women with obstructed labour. The case fatality rate was 1.2%.
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Tang S, Koh E, Rai R, Otton J, Herschtal A, Tran D, Delaney G, Holloway L, Thomas L, Schmitt B, Liney G, Ananthapadmanachan S. Changes in Cardiac MRI Derived Left Ventricular Segmental Strain in Left Sided Breast Cancer Patients Treated with Tangential Radioation Therapy Alone Correlated with Dose. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.1682] [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: 11/17/2022]
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Pant A, Kumar R, Wani NA, Verma S, Sharma R, Pande V, Saxena AK, Dixit R, Rai R, Pandey KC. Allosteric Site Inhibitor Disrupting Auto-Processing of Malarial Cysteine Proteases. Sci Rep 2018; 8:16193. [PMID: 30385827 PMCID: PMC6212536 DOI: 10.1038/s41598-018-34564-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Accepted: 10/16/2018] [Indexed: 02/08/2023] Open
Abstract
Falcipains are major haemoglobinases of Plasmodium falciparum required for parasite growth and development. They consist of pro- and mature domains that interact via 'hot-spot' interactions and maintain the structural integrity of enzyme in zymogen state. Upon sensing the acidic environment, these interactions dissociate and active enzyme is released. For inhibiting falcipains, several active site inhibitors exist, however, compounds that target via allosteric mechanism remains uncharacterized. Therefore, we designed and synthesized six azapeptide compounds, among which, NA-01 & NA-03 arrested parasite growth by specifically blocking the auto-processing of falcipains. Inhibitors showed high affinity for enzymes in presence of the prodomain without affecting the secondary structure. Binding of NA-03 at the interface induced rigidity in the prodomain preventing structural reorganization. We further reported a histidine-dependent activation of falcipain. Collectively, for the first time we provide a framework for blocking the allosteric site of crucial haemoglobinases of the human malaria parasite. Targeting the allosteric site could provide high selectivity and less vulnerable to drug resistance.
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Affiliation(s)
- A Pant
- ICMR-National Institute of Malaria Research, Dwarka Sector 8, New Delhi, India
- Department of Biotechnology, Kumaun University, Nainital, Uttarakhand, India
| | - R Kumar
- Integrated Science Lab, Umeå University, Umeå, Sweden
| | - N A Wani
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India
| | - S Verma
- ICMR-National Institute of Malaria Research, Dwarka Sector 8, New Delhi, India
- Department of Biotechnology, Kumaun University, Nainital, Uttarakhand, India
| | - R Sharma
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
| | - V Pande
- Department of Biotechnology, Kumaun University, Nainital, Uttarakhand, India
| | - A K Saxena
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
| | - R Dixit
- ICMR-National Institute of Malaria Research, Dwarka Sector 8, New Delhi, India
| | - R Rai
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India
| | - K C Pandey
- ICMR-National Institute of Malaria Research, Dwarka Sector 8, New Delhi, India.
- Department of Biochemistry, ICMR-National Institute for Research in Environmental Health, Bhopal, MP - 462001, India.
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Liney GP, Dong B, Weber E, Rai R, Destruel A, Garcia-Alvarez R, Manton DJ, Jelen U, Zhang K, Barton M, Keall P, Crozier S. Imaging performance of a dedicated radiation transparent RF coil on a 1.0 Tesla inline MRI-linac. ACTA ACUST UNITED AC 2018; 63:135005. [DOI: 10.1088/1361-6560/aac813] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Rai R, Ghosh AK, Eren M, Mackie AR, Levine DC, Kim SY, Cedernaes J, Ramirez V, Procissi D, Smith LH, Woodruff TK, Bass J, Vaughan DE. Downregulation of the Apelinergic Axis Accelerates Aging, whereas Its Systemic Restoration Improves the Mammalian Healthspan. Cell Rep 2018; 21:1471-1480. [PMID: 29117554 DOI: 10.1016/j.celrep.2017.10.057] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 07/24/2017] [Accepted: 10/13/2017] [Indexed: 11/29/2022] Open
Abstract
Aging drives the occurrence of numerous diseases, including cardiovascular disease (CVD). Recent studies indicate that blood from young mice reduces age-associated pathologies. However, the "anti-aging" factors in juvenile circulation remain poorly identified. Here, we characterize the role of the apelinergic axis in mammalian aging and identify apelin as an anti-aging factor. The expression of apelin (apln) and its receptor (aplnr) exhibits an age-dependent decline in multiple organs. Reduced apln signaling perturbs organismal homeostasis; mice harboring genetic deficiency of aplnr or apln exhibit enhanced cardiovascular, renal, and reproductive aging. Genetic or pharmacological abrogation of apln signaling also induces cellular senescence mediated, in part, by the activation of senescence-promoting transcription factors. Conversely, restoration of apln in 15-month-old wild-type mice reduces cardiac hypertrophy and exercise-induced hypertensive response. Additionally, apln-restored mice exhibit enhanced vigor and rejuvenated behavioral and circadian phenotypes. Hence, a declining apelinergic axis promotes aging, whereas its restoration extends the murine healthspan.
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Affiliation(s)
- Rahul Rai
- Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; Driskill Graduate Program in Life Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Asish K Ghosh
- Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Mesut Eren
- Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Alexander R Mackie
- Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Daniel C Levine
- Driskill Graduate Program in Life Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA; Department of Medicine, Division of Endocrinology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - So-Youn Kim
- Department of Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Jonathan Cedernaes
- Department of Medicine, Division of Endocrinology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Veronica Ramirez
- Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Daniele Procissi
- Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Layton H Smith
- Diabetes and Obesity Research Center, Sanford-Burnham Medical Research Institute at Lake Nona, Orlando, FL 32827, USA
| | - Teresa K Woodruff
- Department of Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Joseph Bass
- Department of Medicine, Division of Endocrinology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Douglas E Vaughan
- Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
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Oar A, Rai R, Jameson M, Deshpande S, Liney G, Juresic E, Veneran J, Dinsdale G, Elwadia D, Kumar S, Lee M. OC-0295: The feasibility of volumetric 4DMRI in upper abdominal radiation therapy treatment planning. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)30605-4] [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: 11/16/2022]
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Abstract
We used temperature-programmed reaction spectroscopy (TPRS) to investigate the adsorption and oxidation of methanol on stoichiometric and O-rich RuO2(110) surfaces. We find that the complete oxidation of CH3OH is strongly preferred on stoichiometric RuO2(110) during TPRS for initial CH3OH coverages below ∼0.33 ML (monolayer), and that partial oxidation to mainly CH2O becomes increasingly favored with increasing CH3OH coverage from 0.33 to 1.0 ML. We present evidence that an adsorbed CH2O2 species serves as the key intermediate to complete oxidation and that CH2O2 formation is intrinsically facile but becomes limited by the availability of bridging O-atoms on stoichiometric RuO2(110) at initial CH3OH coverages above 0.33 ML. We show that methanol molecules adsorbed in excess of 0.33 ML dehydrogenate to mainly CH2O and desorb during TPRS, with adsorbed CH3O groups mediating the evolution of both CH2O and CH3OH. We find that O-rich RuO2(110) surfaces are also highly active toward methanol oxidation and that selectivity toward the complete oxidation of methanol increases markedly with increasing coverage of on-top O-atoms (Oot) on RuO2(110). Our results demonstrate that CH3OH species adsorbed within Oot-rich domains react efficiently during TPRS, in parallel with reaction of CH3OH adsorbed initially on cus-Ru sites. The data suggests that the facile hydrogenation of Oot atoms and the resulting desorption of H2O at low-temperature (<∼400 K) provides an efficient pathway for restoring reactive O-atoms and thereby promoting complete oxidation of methanol on the O-rich RuO2(110) surface.
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Affiliation(s)
- Rahul Rai
- Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA.
| | - Jason F Weaver
- Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA.
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Abstract
We investigated the molecular adsorption of methane, ethane, propane and n-butane on stoichiometric and oxygen-rich RuO2(110) surfaces using temperature-programmed desorption (TPD) and dispersion-corrected density functional theory (DFT-D3) calculations. We find that each alkane adsorbs strongly on the coordinatively-unsaturated Ru (Rucus) atoms of s-RuO2(110), with desorption from this state producing a well-defined TPD peak at low alkane coverage. As the coverage increases, we find that alkanes first form a compressed layer on the Rucus atoms and subsequently adsorb on the bridging O atoms of the surface until the monolayer saturates. DFT-D3 calculations predict that methane preferentially adsorbs on top of a Rucus atom and that the C2 to C4 alkanes preferentially adopt bidentate configurations in which each molecule aligns parallel to the Rucus atom row and datively bonds to neighboring Rucus atoms. DFT-D3 predicts binding energies that agree quantitatively with our experimental estimates for alkane σ-complexes on RuO2(110). We find that oxygen atoms adsorbed on top of Rucus atoms (Oot atoms) stabilize the adsorbed alkane complexes that bind in a given configuration, while also blocking the sites needed for σ-complex formation. This site blocking causes the coverage of the most stable, bidentate alkane complexes to decrease sharply with increasing Oot coverage. Concurrently, we find that a new peak develops in the C2 to C4 alkane TPD spectra with increasing Oot coverage, and that the desorption yield in this TPD feature passes through a maximum at Oot coverages between ∼50% and 60%. We present evidence that the new TPD peak arises from C2 to C4 alkanes that adsorb in upright, monodentate configurations on stranded Rucus sites located within the Oot layer.
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Affiliation(s)
- Tao Li
- Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA.
| | - Minkyu Kim
- William G. Lowrie Chemical & Biomolecular Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - Rahul Rai
- Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA.
| | - Zhu Liang
- Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA.
| | - Aravind Asthagiri
- William G. Lowrie Chemical & Biomolecular Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - Jason F Weaver
- Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA.
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Rai R, Verma SK, Kim D, Ramirez V, Lux E, Li C, Sahoo S, Wilsbacher LD, Vaughan DE, Quaggin SE, Ghosh AK. A novel acetyltransferase p300 inhibitor ameliorates hypertension-associated cardio-renal fibrosis. Epigenetics 2017; 12:1004-1013. [PMID: 28933600 PMCID: PMC5788418 DOI: 10.1080/15592294.2017.1370173] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [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] [Indexed: 01/04/2023] Open
Abstract
Hypertension-associated end-organ damage commonly leads to cardiac and renal fibrosis. As no effective anti-fibrotic therapy currently exists, the unchecked progression of fibrogenesis manifests as cardio-renal failure and early death. We have previously shown that FATp300-p300 with intrinsic factor acetyltransferase activity-is an essential epigenetic regulator of fibrogenesis, and is elevated in several fibrotic tissues. In this report, we investigate the therapeutic efficacy of a novel FATp300 inhibitor, L002, in a murine model of hypertensive cardio-renal fibrosis. Additionally, we examine the effects of L002 on cellular pro-fibrogenic processes and provide mechanistic insights into its antifibrogenic action. Utilizing cardiac fibroblasts, podocytes, and mesangial cells, we demonstrate that L002 blunts FATp300-mediated acetylation of specific histones. Further, incubating cells with L002 suppresses several pro-fibrogenic processes including cellular proliferation, migration, myofibroblast differentiation and collagen synthesis. Importantly, systemic administration of L002 in mice reduces hypertension-associated pathological hypertrophy, cardiac fibrosis and renal fibrosis. The anti-hypertrophic and anti-fibrotic effects of L002 were independent of blood pressure regulation. Our work solidifies the role of epigenetic regulator FATp300 in fibrogenesis and establishes it as a pharmacological target for reducing pathological matrix remodeling and associated pathologies. Additionally, we discover a new therapeutic role of L002, as it ameliorates hypertension-induced cardio-renal fibrosis and antagonizes pro-fibrogenic responses in fibroblasts, podocytes and mesangial cells.
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Affiliation(s)
- Rahul Rai
- a Feinberg Cardiovascular Research Institute, Feinberg School of Medicine , Northwestern University , Chicago , Illinois , USA
| | - Suresh K Verma
- a Feinberg Cardiovascular Research Institute, Feinberg School of Medicine , Northwestern University , Chicago , Illinois , USA
| | - David Kim
- a Feinberg Cardiovascular Research Institute, Feinberg School of Medicine , Northwestern University , Chicago , Illinois , USA
| | - Veronica Ramirez
- a Feinberg Cardiovascular Research Institute, Feinberg School of Medicine , Northwestern University , Chicago , Illinois , USA
| | - Elizabeth Lux
- a Feinberg Cardiovascular Research Institute, Feinberg School of Medicine , Northwestern University , Chicago , Illinois , USA
| | - Chengjin Li
- a Feinberg Cardiovascular Research Institute, Feinberg School of Medicine , Northwestern University , Chicago , Illinois , USA
| | - Susmita Sahoo
- a Feinberg Cardiovascular Research Institute, Feinberg School of Medicine , Northwestern University , Chicago , Illinois , USA
| | - Lisa D Wilsbacher
- a Feinberg Cardiovascular Research Institute, Feinberg School of Medicine , Northwestern University , Chicago , Illinois , USA
| | - Douglas E Vaughan
- a Feinberg Cardiovascular Research Institute, Feinberg School of Medicine , Northwestern University , Chicago , Illinois , USA
| | - Susan E Quaggin
- a Feinberg Cardiovascular Research Institute, Feinberg School of Medicine , Northwestern University , Chicago , Illinois , USA
| | - Asish K Ghosh
- a Feinberg Cardiovascular Research Institute, Feinberg School of Medicine , Northwestern University , Chicago , Illinois , USA
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Rai R, Verma SK, Kim D, Ramirez V, Li C, Sahoo S, Qin G, Kishore R, Wilsbacher LD, Vaughan DE, Quaggin SE, Ghosh AK. Abstract 482: A Novel Small Molecule Inhibitor of Acetyltransferase p300 Ameliorates Hypertension-Induced Cardiac and Renal Fibrosis. Circ Res 2017. [DOI: 10.1161/res.121.suppl_1.482] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Rationale:
Fibrosis is a common pathophysiological manifestation of chronically injured or stress-affected organs. Additionally, cardiac and renal fibrosis remain leading causes of global morbidity and mortality. Meanwhile, no effective therapy is available to halt the onset and progression of cardiac and renal fibrogenesis. We have previously demonstrated that p300 with intrinsic factor acetyltransferase (FATp300) activity is an essential epigenetic regulator of profibrogenic signal-induced matrix protein synthesis.
Objective:
Here, we attempted to delineate the therapeutic efficacy of a small molecule inhibitor of FATp300, L002, in blocking i) TGF-b-induced profibrogenic processes in cardiac and renal cells in vitro, and ii) Angiotensin II-induced cardiac and renal fibrogenesis in mice.
Methods and Results:
Analysis of cardiac and renal cells demonstrates that L002 inhibits specific histone acetylation and blunts TGF-b induced profibrogenic processes, including cellular proliferation, migration, myofibroblast differentiation and extracellular matrix protein synthesis. The mRNA analysis further indicates that matrix protein, collagen, and myofibroblast marker, a-SMA are inhibited at the transcriptional level. L002 also prevents TGF-b-induced FATp300 upregulation suggesting that TGF-b-induced FATp300 expression is partly self-regulated. However, TGF-b-induced Smad activation is unaltered in the presence of L002, demonstrating its target specificity. Further, mice infused with Angiotensin II show increased blood pressure, cardiac hypertrophy and increased heart weight. Conversely, co-administration of L002 reduces Angiotensin II-induced cardiac hypertrophy and left ventricular wall thickness. Most importantly, L002 administration ameliorates Angiotensin II-induced cardiac and renal fibrosis in mice.
Conclusions:
Taken together this study demonstrates that specific pharmacological inhibition of elevated factor acetyltransferase activity of p300, a major epigenetic regulator, is an ideal approach to control hypertension- or other stress-induced cardiac and renal fibrogenesis as seen in a wide variety of cardiovascular and renal diseases.
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Bhatta RD, Rijal P, Pradhan T, Chhetri S, Rai R, Uprety DK. A Profile of Patients with Molar Pregnancy. Nepal j obstet gynaecol 2017. [DOI: 10.3126/njog.v11i2.17461] [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
Aims: This study was done to determine the incidence, modes of presentation and prognosis of molar pregnancy at B. P. Koirala Institute of Health Sciences.Methods: This was a prospective study done among patients with molar pregnancy admitted at BPKIHS from January 2010 to January 2011. The study was conducted after ethical clearance from Institutional Ethical Review Board of BPKIHS. Written informed consent was taken for enrollment in the study. Baseline information like age, address, race and patient’s presenting complaints, period of gestation and serial serum beta human chorionic gonadotropin (βhCG) were collected and analyzed after entering in excel sheet.Results: Total 48 cases of molar pregnancy were diagnosed during the study period. The incidence of molar pregnancy was found to be 5.58 per 1000 deliveries. The most common mode of presentation was per vaginal bleeding i.e. in 64.58% of cases. Majority of the patients were in the age group of 20-34 years (62.5%). Mean time for normalization of βhCG after suction evacuation was 10.19 weeks.Conclusions: Molar pregnancy is a pregnancy related problem which most commonly presents with per vaginal bleeding during first and second trimester. Most of the patients are treated with suction and evacuation but some develop persistent gestational trophoblastic disease.
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Vaughan DE, Rai R, Khan SS, Eren M, Ghosh AK. Plasminogen Activator Inhibitor-1 Is a Marker and a Mediator of Senescence. Arterioscler Thromb Vasc Biol 2017; 37:1446-1452. [PMID: 28572158 DOI: 10.1161/atvbaha.117.309451] [Citation(s) in RCA: 144] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 05/15/2017] [Indexed: 01/23/2023]
Abstract
PAI-1 (plasminogen activator inhibitor-1) is a member of the evolutionarily conserved serine protease inhibitor family and a potent and rapid-acting inhibitor of both of the mammalian plasminogen activators. Organismal homeostasis requires physiological levels of endogenous PAI-1, and increased PAI-1 production guides the onset and progression of numerous human diseases and contributes to the multimorbidity of aging. Both chronological and stress-induced accelerated aging are associated with cellular senescence and accompanied by marked increases in PAI-1 expression in tissues. Recent studies suggest that PAI-1 is not only a marker but also a key mediator of cellular senescence and organismal aging. Here, we review the significance of PAI-1 as a bonafide marker, as well as a critical mediator, of cellular senescence associated with aging and aging-related pathologies.
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Affiliation(s)
- Douglas E Vaughan
- From the Department of Medicine, Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, IL.
| | - Rahul Rai
- From the Department of Medicine, Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, IL
| | - Sadiya S Khan
- From the Department of Medicine, Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, IL
| | - Mesut Eren
- From the Department of Medicine, Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, IL
| | - Asish K Ghosh
- From the Department of Medicine, Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, IL
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Abstract
BACKGROUND Retracted publications are a crucial, yet overlooked, issue in the scientific community. The purpose of our study was to assess the prevalence, characteristics, and trends of retracted publications in the field of orthopaedics. METHODS Five databases were utilized to identify retracted publications in orthopaedics. The cited articles were assessed for various characteristics, including reason for retraction, based on the Committee on Publication Ethics (COPE) guidelines and trends over time. RESULTS From 1984 to June 4, 2016, 59 of 229,502 orthopaedic publications were retracted (3 per 10,000 articles). There was a spike in the prevalence (22 of 59) of retracted articles in 2015. When compared with the total number of retracted publications identified through PubMed, the field of orthopaedics represented 1.4% of all retracted publications. The original version of 47 of these 59 retracted publications was still available on the respective journal's web site; 14 (30%) of these were not noted as having been retracted. The mean time from electronic publication to retraction was 19.4 ± 23.3 months. The mean number of citations of a retracted publication after the date of retraction was 9.3 ± 19.3. Reasons for retraction included plagiarism (32%), misconduct (27%), redundant publication (22%), miscalculation or experimental error (8%), and unethical research (0%); the reason for retraction was not stated for 10% of the publications. There was no correlation between a journal's impact factor and the mean number of months to retraction (p = 0.564). CONCLUSIONS While uncommon, the retraction of publications within the field of orthopaedics may be increasing. The most often cited reasons for retraction were plagiarism, misconduct, and redundant publication. Retracted articles continue to be cited in the literature after retraction. CLINICAL RELEVANCE Greater awareness of the COPE guidelines within the orthopaedic community and more efficient means to prevent the citation of retracted articles are needed.
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Affiliation(s)
- Rahul Rai
- 1Department of Orthopaedics, Rutgers New Jersey Medical School, Newark, New Jersey
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Nguyen K, Min M, Holloway L, Jameson M, Rumley C, Fowler A, Lee M, Forstner D, Rai R, Liney G. PO-0615: Can diffusion-weighted MRI predict for xerostomia and QoL in head and neck patients receiving RT? Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)31052-6] [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: 11/29/2022]
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Liney GP, Dong B, Begg J, Vial P, Zhang K, Lee F, Walker A, Rai R, Causer T, Alnaghy SJ, Oborn BM, Holloway L, Metcalfe P, Barton M, Crozier S, Keall P. Technical Note: Experimental results from a prototype high-field inline MRI-linac. Med Phys 2017; 43:5188. [PMID: 27587049 DOI: 10.1118/1.4961395] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
PURPOSE The pursuit of real-time image guided radiotherapy using optimal tissue contrast has seen the development of several hybrid magnetic resonance imaging (MRI)-treatment systems, high field and low field, and inline and perpendicular configurations. As part of a new MRI-linac program, an MRI scanner was integrated with a linear accelerator to enable investigations of a coupled inline MRI-linac system. This work describes results from a prototype experimental system to demonstrate the feasibility of a high field inline MR-linac. METHODS The magnet is a 1.5 T MRI system (Sonata, Siemens Healthcare) was located in a purpose built radiofrequency (RF) cage enabling shielding from and close proximity to a linear accelerator with inline (and future perpendicular) orientation. A portable linear accelerator (Linatron, Varian) was installed together with a multileaf collimator (Millennium, Varian) to provide dynamic field collimation and the whole assembly built onto a stainless-steel rail system. A series of MRI-linac experiments was performed to investigate (1) image quality with beam on measured using a macropodine (kangaroo) ex vivo phantom; (2) the noise as a function of beam state measured using a 6-channel surface coil array; and (3) electron contamination effects measured using Gafchromic film and an electronic portal imaging device (EPID). RESULTS (1) Image quality was unaffected by the radiation beam with the macropodine phantom image with the beam on being almost identical to the image with the beam off. (2) Noise measured with a surface RF coil produced a 25% elevation of background intensity when the radiation beam was on. (3) Film and EPID measurements demonstrated electron focusing occurring along the centerline of the magnet axis. CONCLUSIONS A proof-of-concept high-field MRI-linac has been built and experimentally characterized. This system has allowed us to establish the efficacy of a high field inline MRI-linac and study a number of the technical challenges and solutions.
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Affiliation(s)
- G P Liney
- Department of Medical Physics, Ingham Institute for Applied Medical Research, Liverpool NSW 2170, Australia; Radiation Physics, Liverpool Cancer Therapy Centre, Liverpool NSW 2170, Australia; School of Medicine, University of New South Wales, Sydney NSW 2170, Australia; and Centre for Medical Radiation Physics, University of Wollongong, NSW 2522, Australia
| | - B Dong
- Department of Medical Physics, Ingham Institute for Applied Medical Research, Liverpool NSW 2170, Australia
| | - J Begg
- Radiation Physics, Liverpool Cancer Therapy Centre, Liverpool NSW 2170, Australia
| | - P Vial
- Radiation Physics & Liverpool Cancer Therapy Centre, Liverpool, NSW 2170, Australia and Radiation Physics Laboratory, Sydney Medical School, University of Sydney, NSW 2006, Australia
| | - K Zhang
- Department of Medical Physics, Ingham Institute for Applied Medical Research, Liverpool NSW 2170, Australia
| | - F Lee
- Radiation Physics Laboratory, Sydney Medical School, University of Sydney, NSW 2006, Australia
| | - A Walker
- Medical Physics, Ingham Institute for Applied Medical Research, Liverpool, NSW 2170, Australia and Radiation Physics, Liverpool Cancer Therapy Centre, Liverpool NSW 2170, Australia
| | - R Rai
- Medical Physics, Ingham Institute for Applied Medical Research, Liverpool, NSW 2170, Australia and Radiation Physics, Liverpool Cancer Therapy Centre, Liverpool NSW 2170, Australia
| | - T Causer
- Centre for Medical Radiation Physics, University of Wollongong, NSW 2522, Australia
| | - S J Alnaghy
- Centre for Medical Radiation Physics, University of Wollongong, NSW 2522, Australia
| | - B M Oborn
- Centre for Medical Radiation Physics, University of Wollongong, NSW 2522, Australia and Illawarra Cancer Care Centre, Wollongong Hospital, NSW 2500, Australia
| | - L Holloway
- Department of Medical Physics, Ingham Institute for Applied Medical Research, Liverpool NSW 2170, Australia; Radiation Physics, Liverpool Cancer Therapy Centre, Liverpool NSW 2170, Australia; School of Medicine, University of New South Wales, Sydney NSW 2170, Australia; Centre for Medical Radiation Physics, University of Wollongong, NSW 2522, Australia; and Radiation Physics Laboratory, Sydney Medical School, University of Sydney, NSW 2006, Australia
| | - P Metcalfe
- Centre for Medical Radiation Physics, University of Wollongong, NSW 2522, Australia
| | - M Barton
- Department of Medical Physics, Ingham Institute for Applied Medical Research, Liverpool NSW 2170, Australia and School of Medicine, University of New South Wales, Sydney NSW 2170, Australia
| | - S Crozier
- School of Information Technology & Electrical Engineering, University of Queensland, Brisbane, QLD 4072, Australia
| | - P Keall
- Radiation Physics Laboratory, Sydney Medical School, University of Sydney, Sydney NSW 2170, Australia
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