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Shewade HD, Frederick A, Suma KV, Rao R, Selvavinayagam TS, Ramachandran R, Murhekar MV. Differentiated TB care: Tamil Nadu's achievements, plans and implications for national TB programmes. Int J Tuberc Lung Dis 2024; 28:160-162. [PMID: 38454188 DOI: 10.5588/ijtld.23.0297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2024] Open
Affiliation(s)
- H D Shewade
- ICMR-National Institute of Epidemiology (ICMR-NIE), Chennai
| | - A Frederick
- State TB Cell, Government of Tamil Nadu, Chennai
| | - K V Suma
- Office of the WHO Representative to India, WHO Country Office, New Delhi
| | - R Rao
- Central TB Division, Ministry of Health and Family Welfare, New Delhi
| | - T S Selvavinayagam
- Directorate of Public Health and Preventive Medicine, Government of Tamil Nadu, Chennai, India
| | - R Ramachandran
- Office of the WHO Representative to India, WHO Country Office, New Delhi
| | - M V Murhekar
- ICMR-National Institute of Epidemiology (ICMR-NIE), Chennai
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Rajendran P, Saini S, Kumar N, Vashistha H, Thiruvengadam K, Ramamoorthy T, Gopalaswamy R, Kayesth J, Alavadi U, Moore M, Joshi RP, Ramachandran R, Anand S, Shanmugam S, Padmapriyadarsini C. Establishing proof of concept for utility of Trueprep ®-extracted DNA in line-probe assay testing. Int J Tuberc Lung Dis 2023; 27:742-747. [PMID: 37749831 PMCID: PMC10519390 DOI: 10.5588/ijtld.23.0003] [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: 01/01/2023] [Accepted: 04/01/2023] [Indexed: 09/27/2023] Open
Abstract
BACKGROUND AND OBJECTIVES: With an increased demand for rapid, diagnostic tools for TB and drug resistance detection, Truenat® MTB-RIF assay has proven to be a rapid point of care molecular test. The present study aimed to establish a proof of concept of using Trueprep-extracted DNA for line-probe assay (LPA) testing.METHODS: A total of 150 sputum samples (MTB-positive at Truenat sites) were divided into two aliquots. One aliquot was used for DNA extraction using the Trueprep device and MTB testing. The second aliquot of the sample was subjected to GenoLyse® DNA extraction. DNA from both the Trueprep and GenoLyse methods was subjected to first-line (FL) and second-line (SL) LPA testing.RESULTS: Of 139 Trueprep-extracted DNA, respectively 135 (97%) and 105 (75%) had interpretable results by FL and SL-LPA testing. Of 128 GenoLyse-extracted DNA, all 128 (100%) had interpretable FL-LPA results and 114 (89%) had interpretable SL-LPA results.CONCLUSION: The results obtained in this study indicate that Trueprep-extracted DNA can be used in obtaining valid LPA results. However, the study needs to be conducted on a larger sample size before our recommendations can be used for policy-making decisions.
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Affiliation(s)
- P Rajendran
- National Institute for Research in Tuberculosis, Indian Council of Medical Research, New Delhi
| | - S Saini
- Infectious Disease Detection and Surveillance Project, United States Agency for International Development (USAID), ICF Incorporated, Reston, VA, USA
| | - N Kumar
- Central TB Division, Ministry of Health and Family Welfare, New Delhi
| | - H Vashistha
- Infectious Disease Detection and Surveillance Project, United States Agency for International Development (USAID), ICF Incorporated, Reston, VA, USA
| | - K Thiruvengadam
- National Institute for Research in Tuberculosis, Indian Council of Medical Research, New Delhi
| | - T Ramamoorthy
- National Institute for Research in Tuberculosis, Indian Council of Medical Research, New Delhi
| | - R Gopalaswamy
- National Institute for Research in Tuberculosis, Indian Council of Medical Research, New Delhi
| | - J Kayesth
- Infectious Disease Detection and Surveillance Project, United States Agency for International Development (USAID), ICF Incorporated, Reston, VA, USA
| | | | - M Moore
- Infectious Disease Detection and Surveillance Project, United States Agency for International Development (USAID), ICF Incorporated, Reston, VA, USA
| | - R P Joshi
- Central TB Division, Ministry of Health and Family Welfare, New Delhi
| | - R Ramachandran
- World Health Organization India Office, New Delhi, India
| | - S Anand
- World Health Organization India Office, New Delhi, India
| | - S Shanmugam
- National Institute for Research in Tuberculosis, Indian Council of Medical Research, New Delhi
| | - C Padmapriyadarsini
- National Institute for Research in Tuberculosis, Indian Council of Medical Research, New Delhi
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Sachdeva KS, Bhatnagar AK, Bhaskar A, Singla N, Sridhar R, Ramraj B, Athawale A, Solanki R, Baruah SR, Patel Y, Ramachandran R, Padmapriyadarsini C. QTc prolongation with bedaquiline treatment for drug-resistant pulmonary TB in a programmatic setting. Int J Tuberc Lung Dis 2023; 27:329-331. [PMID: 37035973 DOI: 10.5588/ijtld.22.0406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2023] Open
Affiliation(s)
- K S Sachdeva
- Central TB Division, Ministry of Health and Family Welfare, Government of India, New Delhi, India, The Union South East Asia, New Delhi, India
| | - A K Bhatnagar
- Rajan Babu Institute of Pulmonary Medicine and Tuberculosis, New Delhi, India
| | - A Bhaskar
- Indian Council of Medical Research-National Institute for Research in Tuberculosis, Chennai, India
| | - N Singla
- National Institute of Tuberculosis and Respiratory Diseases, New Delhi, India
| | - R Sridhar
- Government Hospital of Thoracic Medicine, Chennai, India
| | - B Ramraj
- Indian Council of Medical Research-National Institute for Research in Tuberculosis, Chennai, India
| | - A Athawale
- Seth GS Medical College & KEM Hospital and Group of TB Hospitals, Mumbai, India
| | - R Solanki
- BJ Medical College, Ahmedabad, India
| | | | - Y Patel
- Central TB Division, Ministry of Health and Family Welfare, Government of India, New Delhi, India, WHO Country Office for India, New Delhi, India
| | | | - C Padmapriyadarsini
- Indian Council of Medical Research-National Institute for Research in Tuberculosis, Chennai, India
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Hann A, Santiago Badenas A, Galipeau HJ, Constante M, Libertucci J, Rahmani S, Jackson K, Rueda G, Rossi L, Ramachandran R, Ruf W, Caminero A, Bercik P, Verdu EF. A3 CROHN’S DISEASE PROTEOLYTIC MICROBIOTA ENHANCES INFLAMMATION THROUGH PAR2 PATHWAY IN GNOTOBIOTIC MICE. J Can Assoc Gastroenterol 2023. [PMCID: PMC9991128 DOI: 10.1093/jcag/gwac036.003] [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: 03/09/2023] Open
Abstract
Background An imbalance in host proteases has been implicated in inflammatory bowel disease (IBD). Recent evidence implicates microbial proteolytic activity (PA) in ulcerative colitis but whether it also plays a role in Crohn’s disease (CD) remains unclear. Purpose We therefore investigated the colitogenic potential and underlying pathways of proteolytic CD microbiota. Method Adult germ-free (GF) C57BL/6 mice were colonized with CD microbiota selected based on high (CD-HPA) or low fecal proteolytic activity (CD-LPA), and from healthy controls with LPA (HC-LPA), after which total fecal proteolytic, elastolytic and mucolytic activity were analyzed in the mice. Microbial community was assessed by 16S rRNA gene sequencing. Immune function and colonic injury were investigated by inflammatory gene expression (NanoString) and histology. Colitis severity and underlying pathways were investigated in C57BL/6, Nucleotide-binding Oligomerization Domain-2 knock-out (Nod2-/-), and Protease-Activated Receptor 2 (PAR2) cleavage resistant mice (R38E-PAR2) subjected to 2% dextran sodium sulfate in drinking water for 5 days followed by 2 days on water. Result(s) Colonization with HC-LPA or CD-LPA lowered baseline fecal proteolytic activity compared with GF mice, which was paralleled by lower acute inflammatory cell infiltrate. CD-HPA further increased proteolytic activity compared with GF mice. Fecal supernatants from CD-LPA or HC-LPA colonized mice had lower in vitro PAR2 cleavage compared to supernatants from GF and CD-HPA colonized mice. Several genes, such as Map kinases, Rhoa, Myd88, and Tollip, were increased in GF mice compared to colonized mice. 18 genes related to inflammation and barrier function (e.g., Mapk2k6, Tnf, Claudin1) were differentially expressed between CD-LPA and CD-HPA. CD-HPA mice had lower alpha diversity, distinct microbial profiles, and higher fecal proteolytic activity compared with CD-LPA. Abundance of several beneficial species (e.g., Akkermansia muciniphilia) was decreased while other taxa were increased (e.g., Hungattella hathewayi) in CD-HPA compared to CD-LPA. H. hathewayi as well as the serine protease K04772 were transcriptionally increased in fecal samples from CD-HPA colonized mice. C57BL/6 and Nod2-/- mice, but not R38E-PAR2 mice, colonized with CD-HPA developed earlier and more severe colitis compared with mice colonized with CD-LPA. Conclusion(s) CD proteolytic microbiota is proinflammatory through a PAR2 pathway. H. hathewayi correlates with the proinflammatory phenotype through the serine protease K04772 in this model. The results support a role of microbial PA in CD, which could constitute a biomarker for identifying patients who would benefit from anti-proteolytic therapies. Disclosure of Interest None Declared
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Affiliation(s)
| | | | | | | | | | | | - K Jackson
- Medicine,Chemical Engineering, McMaster University, Hamilton
| | | | | | - R Ramachandran
- Physiology and Pharmacology, Western University, London, Canada
| | - W Ruf
- Immunology and Microbiology, The Scripps Research Institute, La Jolla, United States,Center for Thrombosis and Hemostasis, Johannes Gutenberg University Medical Center, Mainz, Germany
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PRABHAHAR A, Kaur P, Kumar V, Kohli H, Ramachandran R. WCN23-0977 TO STUDY THE ASSOCIATION OF BONE MINERAL DENSITY WITH CLINICAL ACTIVITY IN ADULT-ONSET NEPHROTIC SYNDROME. Kidney Int Rep 2023. [DOI: 10.1016/j.ekir.2023.02.589] [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: 03/22/2023] Open
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SAMRA T, Kumar V, Mahajan V, Ramachandran R, Puri G, Pal A, Naik B, Bhalla A, Dixit R. WCN23-0857 Utility of urinary biomarkers for diagnosis of acute kidney injury (AKI) in COVID-19. Kidney Int Rep 2023. [PMCID: PMC10025671 DOI: 10.1016/j.ekir.2023.02.989] [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: 03/22/2023] Open
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Mohamed B, Ramachandran R, Rabai F, Price CC, Polifka A, Hoh D, Seubert CN. Frailty Assessment and Prehabilitation Before Complex Spine Surgery in Patients With Degenerative Spine Disease: A Narrative Review. J Neurosurg Anesthesiol 2023; 35:19-30. [PMID: 34354024 PMCID: PMC8816967 DOI: 10.1097/ana.0000000000000787] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 05/18/2021] [Indexed: 02/07/2023]
Abstract
Degenerative spine disease increases in prevalence and may become debilitating as people age. Complex spine surgery may offer relief but becomes riskier with age. Efforts to lessen the physiological impact of surgery through minimally invasive techniques and enhanced recovery programs mitigate risk only after the decision for surgery. Frailty assessments outperform traditional tools of perioperative risk stratification. The extent of frailty predicts complications after spine surgery such as reoperation for infection and 30-day mortality, as well as elements of social cost such as hospital length of stay and discharge to an advanced care facility. Symptoms of spine disease overlap with phenotypic markers of frailty; therefore, different frailty assessment tools may perform differently in patients with degenerative spine disease. Beyond frailty, however, cognitive decline and psychosocial isolation may interact with frailty and affect achievable surgical outcomes. Prehabilitation, which has reduced perioperative risk in colorectal and cardiac surgery, may benefit potential complex spine surgery patients. Typical prehabilitation includes physical exercise, nutrition supplementation, and behavioral measures that may offer symptomatic relief even in the absence of surgery. Nonetheless, the data on the efficacy of prehabilitation for spine surgery remains sparse and barriers to prehabilitation are poorly defined. This narrative review concludes that a frailty assessment-potentially supplemented by an assessment of cognition and psychosocial resources-should be part of shared decision-making for patients considering complex spine surgery. Such an assessment may suffice to prompt interventions that form a prehabilitation program. Formal prehabilitation programs will require further study to better define their place in complex spine care.
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Affiliation(s)
- Basma Mohamed
- Department of Anesthesiology, University of Florida College of Medicine, Gainesville, Florida
- UF Health Comprehensive Spine Center, University of Florida, Gainesville, Florida
| | - Ramani Ramachandran
- Department of Anesthesiology, University of Florida College of Medicine, Gainesville, Florida
- UF Health Comprehensive Spine Center, University of Florida, Gainesville, Florida
| | - Ferenc Rabai
- Department of Anesthesiology, University of Florida College of Medicine, Gainesville, Florida
- UF Health Comprehensive Spine Center, University of Florida, Gainesville, Florida
- Perioperative Cognitive Anesthesia Network, University of Florida College of Medicine, Gainesville, Florida
| | - Catherine C. Price
- Department of Anesthesiology, University of Florida College of Medicine, Gainesville, Florida
- Department of Clinical and Health Psychology, University of Florida College of Public Health and Health Professions, Gainesville, Florida
- Perioperative Cognitive Anesthesia Network, University of Florida College of Medicine, Gainesville, Florida
| | - Adam Polifka
- Department of Neurosurgery, University of Florida College of Medicine, Gainesville, Florida
- UF Health Comprehensive Spine Center, University of Florida, Gainesville, Florida
| | - Daniel Hoh
- Department of Neurosurgery, University of Florida College of Medicine, Gainesville, Florida
- UF Health Comprehensive Spine Center, University of Florida, Gainesville, Florida
| | - Christoph N. Seubert
- Department of Anesthesiology, University of Florida College of Medicine, Gainesville, Florida
- UF Health Comprehensive Spine Center, University of Florida, Gainesville, Florida
- Perioperative Cognitive Anesthesia Network, University of Florida College of Medicine, Gainesville, Florida
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Pavithraa S, Ramachandran R, Mifsud DV, Meka JK, Lo JI, Chou SL, Cheng BM, Rajasekhar BN, Bhardwaj A, Mason NJ, Sivaraman B. VUV photoabsorption of thermally processed carbon disulfide and ammonia ice mixtures - Implications for icy objects in the solar system. Spectrochim Acta A Mol Biomol Spectrosc 2022; 283:121645. [PMID: 36037552 DOI: 10.1016/j.saa.2022.121645] [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] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 07/13/2022] [Accepted: 07/15/2022] [Indexed: 06/15/2023]
Abstract
Many icy bodies in the solar system have been found to contain a rich mixture of simple molecules on their surfaces. Similarly, comets are now known to be a reservoir of molecules ranging from water to amides. The processing of planetary/cometary ices leads to the synthesis of more complex molecules some of which may be the harbingers of life. Carbon disulphide (CS2) and ammonia (NH3) are known to be present on many icy satellites and comets. Reactions involving CS2 and NH3 may lead to the formation of larger molecules that are stable under space conditions. In this paper we present temperature dependent VUV spectra of pure CS2 in the ice phase, and of CS2 and NH3 ices deposited as (i) layered, and (ii) mixed ices at 10 K and warmed to higher temperatures until their sublimation. Pure CS2 ice is found to have a broad absorption in the VUV region, which is unique for a small molecule in the ice phase. In layered and mixed ices, the molecules tend to affect the phase change and sublimation temperature of each other and also leave behind a form of CS2-NH3 complex after thermal annealing. This study of CS2-NH3 ice systems in layered and mixed configurations would support the detection of these species/complexes in mixed molecular ices analogous to that on planetary and cometary surfaces.
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Affiliation(s)
- S Pavithraa
- Physical Research Laboratory, Ahmedabad, India
| | | | - D V Mifsud
- Centre for Astrophysics and Planetary Science, School of Physical Sciences, University of Kent, Canterbury CT2 7NH, UK; Institute for Nuclear Research (Atomki), Debrecen 4026, Hungary
| | - J K Meka
- Physical Research Laboratory, Ahmedabad, India
| | - J I Lo
- Department of Medical Research, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - S L Chou
- National Synchrotron Radiation Research Center, Taiwan
| | - Bing-Ming Cheng
- Department of Medical Research, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | | | | | - N J Mason
- Centre for Astrophysics and Planetary Science, School of Physical Sciences, University of Kent, Canterbury CT2 7NH, UK
| | - B Sivaraman
- Physical Research Laboratory, Ahmedabad, India.
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Devi Sangeetha A, Gopalakrishnan K, Ramachandran R, Narasimhan M, Ramraj B. A descriptive study of onychoscopic features in various subtypes of onychomycosis. Med J Armed Forces India 2022; 78:S219-S225. [PMID: 36147430 PMCID: PMC9485850 DOI: 10.1016/j.mjafi.2021.03.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 09/15/2020] [Accepted: 03/21/2021] [Indexed: 11/23/2022] Open
Abstract
Background The diagnosis of onychomycosis is usually clinical and is confirmed by 40% KOH examination. A diagnostic dilemma occurs when KOH examination is negative despite strong clinical suspicion. Dermoscopic evaluation of the nail is referred to as onychoscopy. We attempted to assess the dermoscopic findings in Onychomycosis positive with KOH examination. Methods A cross sectional study was conducted in a tertiary care center including 122 patients with clinical suspicion of onychomycosis with KOH positivity. After assessment of risk factors and gross nail examination, onychoscopic examination was done to identify the presence of the specific features. Results Primary findings of onychoscopic examination were 'spiked pattern' in 80.3% subjects, of which 95 were distal lateral subungual onychomycosis (DLSO), 8 of total dystrophic onychomycosis (TDO). True leukonychia was seen in the single patient of proximal subungual onychomycosis (PSO) and pseudoleukonychia in the single patient of white superficial onychomycosis (WSO). Distal irregular termination was observed in 23% of subjects - 8 from DLSO and in all 20 patients of TDO. 'Ruin appearance' was observed in all 20 patients of TDO, 56 patients with DLSO and not seen in other types of onychomycosis (OM). Presence of spiked pattern, Longitudinal striae, Distal irregular termination and Ruin appearance were found to be statistically significant (p < 0.001). Conclusion In suspected onychomycosis, specific onychoscopic findings such as Spiked pattern, Longitudinal striae, Ruin appearance and Distal irregular termination can be used as supporting evidence for diagnosing onychomycosis clinically and initiating antifungal therapy if mycological testing is unavailable or negative.
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Affiliation(s)
- A. Devi Sangeetha
- Junior Resident (Dermatology), SRM Medical College & Research Centre, SRM Nagar, Tamil Nadu, India
| | - K. Gopalakrishnan
- Associate Professor (Dermatology), SRM Medical College & Research Centre, SRM Nagar, Tamil Nadu, India
| | - R. Ramachandran
- Associate Professor (Dermatology), SRM Medical College & Research Centre, SRM Nagar, Tamil Nadu, India
| | - Murali Narasimhan
- Professor & Head (Dermatology), SRM Medical College & Research Centre, SRM Nagar, Tamil Nadu, India
| | - Balaji Ramraj
- Associate Professor (Community Medicine), SRM Medical College & Research Centre, SRM Nagar, Tamil Nadu, India
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KUMAR A, Nada R, Ramachandran R. POS-028 Rare genetic alterations in patients with C3 glomerulopathy-something to ponder upon. Kidney Int Rep 2022. [DOI: 10.1016/j.ekir.2022.04.048] [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] Open
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Ramachandran R, Pavithraa S, Meka JK, Rahul KK, Lo JI, Chou SL, Cheng BM, Rajasekhar BN, Bhardwaj A, Mason NJ, Sivaraman B. Vacuum ultraviolet photoabsorption spectra of icy isoprene and its oligomers. Spectrochim Acta A Mol Biomol Spectrosc 2022; 268:120586. [PMID: 34872862 DOI: 10.1016/j.saa.2021.120586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 10/30/2021] [Accepted: 11/02/2021] [Indexed: 06/13/2023]
Abstract
Isoprene and its oligomers, terpenes, are expected to be present, along with other complex organic molecules in the diverse environments of the ISM and in our solar system. Due to insufficient spectral information of these molecules at low temperature, detection and understanding the importance of these molecules has been rather incomplete. For this purpose, we have carried out the vacuum ultraviolet (VUV) photoabsorption measurements on pure molecular ices of isoprene and a few simple terpenes: limonene, α-pinene and β-pinene by forming icy mantles on cold dust analogs. From these experiments, we report the first low temperature (10 K) VUV spectra of isoprene and its oligomers limonene, α-pinene and β-pinene. VUV photoabsorption spectra of all the molecules reported here reveal similarities in the ice and gas phase as expected, with an exception of isoprene where a prominent red shift is observed in the ice phase absorption. This unqiue property of isoprene along with distinctive absorption at longer wavelengths supports its candidature for detection on icy bodies.
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Affiliation(s)
| | - S Pavithraa
- Department of Applied Chemistry and Institute of Molecular Sciences, National Chiao Tung University, Hsinchu, Taiwan
| | - J K Meka
- Physical Research Laboratory, Ahmedabad, India
| | - K K Rahul
- Physical Research Laboratory, Ahmedabad, India
| | - J-I Lo
- Department of Medical Research, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - S-L Chou
- National Synchrotron Radiation Research Center, Hsinchu, Taiwan
| | - B-M Cheng
- Department of Medical Research, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - B N Rajasekhar
- Atomic and Molecular Physics Division, Bhabha Atomic Research Center, Mumbai, India
| | | | - N J Mason
- School of Physical Sciences, University of Kent, Canterbury, UK
| | - B Sivaraman
- Physical Research Laboratory, Ahmedabad, India.
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Chowdhury Q, Ramachandran R, Ozdemir O, Lawrence M, Abdelhamed H. Characterization of the Role of FruR in Listeria monocytogenes Virulence and Identification of Its Regulons. Int J Infect Dis 2022. [DOI: 10.1016/j.ijid.2021.12.184] [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: 10/19/2022] Open
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Lazzaro DR, Ramachandran R, Cohen E, Galetta SL. Covid-19 vaccination and possible link to Herpes zoster. Am J Ophthalmol Case Rep 2022; 25:101359. [PMID: 35097240 PMCID: PMC8789478 DOI: 10.1016/j.ajoc.2022.101359] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 04/29/2021] [Revised: 10/25/2021] [Accepted: 01/22/2022] [Indexed: 11/19/2022] Open
Abstract
PURPOSE To report 3 otherwise healthy patients with Herpes zoster reactivation shortly after administration of a mRNA vaccine against the novel COVID-19 virus. OBSERVATIONS Patient 1 is a 54 year old who presented with Herpes zoster meningitis complicated by enhancing nodular leptomeningeal lesions of the spinal cord. The subsequent two patients had Herpes zoster ophthalmicus of the cornea (Case 2) and eyelid (Case 3). All three presented within 2 weeks of receiving the Pfizer/BioNTech COVID-19 vaccine. CONCLUSIONS Herpes zoster may be a side effect of m RNA vaccination against the Sars-CoV2 vaccine and requires further investigation.
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Affiliation(s)
- D R Lazzaro
- NYU Langone Medical Center: NYU Langone Health, United States
| | - R Ramachandran
- NYU Langone Medical Center: NYU Langone Health, United States
| | - E Cohen
- NYU Langone Medical Center: NYU Langone Health, United States
| | - S L Galetta
- NYU Langone Medical Center: NYU Langone Health, United States
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GAUR M, Ramachandran R, Kenwar D, Valliappan M, Kohli Singh H. POS-769 ALLOGRAFT OUTCOMES, SAFETY AND EFFICACY OF QUINOLONE BASED AND RIFAMPIN BASED REGIMENS FOR THE TREATMENT OF TUBERCULOSIS IN KIDNEY TRANSPLANT RECIPIENTS. Kidney Int Rep 2022. [DOI: 10.1016/j.ekir.2022.01.805] [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: 10/19/2022] Open
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Narasimhan M, Ramachandran R, Cornelius Gnanadurai JS, T Durai P, Kalaivani P, Nithila C. Lax skin and blurring of vision- A case report of pseudoxanthoma elasticum. J Family Med Prim Care 2022; 11:7972-7974. [PMID: 36994043 PMCID: PMC10040992 DOI: 10.4103/jfmpc.jfmpc_2337_21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 09/14/2022] [Accepted: 10/12/2022] [Indexed: 01/31/2023] Open
Abstract
Increased laxity of the skin can be caused by aging, significant weight loss, or defects in the elastic tissue. A 38-year-old female presented with increased laxity of the skin over the neck, thighs, and abdomen for 6 years, associated with headache and blurring of vision for a week. On cutaneous examination, prominent skin folds, laxity, and wrinkles were noted over the neck, abdomen, thighs, and groin, with yellowish papules along the neck creases. Ocular examination revealed features suggestive of angioid streaks. Skin biopsy showed fragmented elastic fibers and intervening calcium deposits on Verhoeff Van Gieson and Von Kossa stains. Based on these findings, a diagnosis of pseudoxanthoma elasticum (PXE) was made. The patient was started on oral and topical sunscreens and eye protection and advised regular follow-up. Diagnosing the condition early based on skin findings can help prevent further multi-system manifestations by taking appropriate preventive measures as this condition is progressive and has no cure.
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Anushya G, Mahesh R, Freeda TH, Ramachandran R, Raju G. Effect of Aegle marmelos on the growth of brushite crystals. Clin Phytosci 2021. [DOI: 10.1186/s40816-021-00280-6] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
The urinary stone formation is a very common health problem due to the prolonged medication. Calcium Hydrogen Phosphate Dihydrate (CaHPO4.2H2O, CHPD and Brushite) is one of the major constituent of urinary stone crystals. The formation and deposition of brushite crystals is the central cause of recurrent kidney stone disease among the global population. The present study aims to investigate the effect of Aegle marmelos leaves on the growth of brushite crystals to explicate the inhibitory effect of urinary stones from a different point of view.
Methods
The CHPD crystals were grown by the Single Diffusion Gel growth technique. In order to inhibit the formation of urinary stones, CHPD crystals are grown in the laboratory in the pure form and by adding the prolonged medicine A. marmelos taken especially by diabetic patients. A comparative study of the pure and A. marmelos leaves added crystals has been carried out using the Growth factor, Powder X-ray diffraction, Microstructural parameters, FTIR and SEM-EDAX.
Results
Total mass of the grown crystals is found to decrease with increasing concentrations of leaf extract of the A. marmelos. On comparing with undoped, crystalline size of the A. marmelos doped samples is reduced. Disappearance of absorption band and peak shift in the FTIR shows the incorporation of functional groups of A. marmelos. The morphology changes of the treated crystals are assessed in SEM.
Conclusions
The result shows that herbal extracts prepared from A. marmelos have good inhibitory effect on the growth of the brushite urinary stone crystals considered.
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Jegadish N, Fernandes SD, Narasimhan M, Ramachandran R. A descriptive study of the clinical and etiological profile of balanoposthitis. J Family Med Prim Care 2021; 10:2265-2271. [PMID: 34322423 PMCID: PMC8284224 DOI: 10.4103/jfmpc.jfmpc_2467_20] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 02/21/2021] [Accepted: 04/09/2021] [Indexed: 11/24/2022] Open
Abstract
Background: Balanoposthitis is defined as an inflammatory condition of glans penis and prepuce. There are wide variety of etiologies including both infectious and noninfectious conditions. This study attempts to throw light on information regarding clinical and microbiological aspects of balanoposthitis. Objectives: To study various clinical patterns, etiologies, and predisposing factors of balanoposthitis. Methodology: A descriptive study was undertaken on 106 cases who presented to sexually transmitted disease (STD) clinic with balanoposthitis between November 2017 and April 2019. A detailed history, physical examination, and investigations like KOH mount, leishman staining, gram staining, dark field microscopy, cultures, and other investigations were done wherever indicated. The data collected was tabulated and analyzed. Results: In our study, infectious etiology was the most common and was found in 77.36% cases. About 13.41% of cases with infectious balanoposthitis had multiple etiological agents. Noninfectious etiology was found in 22.64% cases. The most common infectious cause of balanoposthitis was candida, noted in 59.76% cases, followed by herpes simplex virus (19.51%), human papilloma virus (13.41%), and scabies (8.54%). Among noninfectious etiologies, adverse drug reaction (4.72% of total cases) was the most common, followed by lichen planus (3.77%) and psoriasis (3.77%). There was significantly higher incidence of phimosis in diabetic patients with candidal balanoposthitis. Conclusion: Identifying the etiology facilitates early treatment and hence reduces the infectivity and transmission of disease and also the disease complications like phimosis. In addition, multiple infectious etiologies should always be kept in mind while evaluating STDs.
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Affiliation(s)
- N Jegadish
- Department of Dermatology, S. R. M Medical College Hospital and Research Centre, Potheri, Chennai, Tamilnadu, India
| | - S D Fernandes
- Department of Dermatology, S. R. M Medical College Hospital and Research Centre, Potheri, Chennai, Tamilnadu, India
| | - Murali Narasimhan
- Department of Dermatology, S. R. M Medical College Hospital and Research Centre, Potheri, Chennai, Tamilnadu, India
| | - R Ramachandran
- Department of Dermatology, S. R. M Medical College Hospital and Research Centre, Potheri, Chennai, Tamilnadu, India
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Sachdeva KS, Arora N, Solanki R, Singla R, Sarin R, Bhatnagar A, Khanna A, Atahavale A, Shridhar R, Barua SR, Parmar M, Farooq SI, Ramachandran R, Alavadi U, Swamickan R, Tonsing J, Patel Y, Singla N. Strengthened capacity of India´s bedaquiline Conditional Access Programme for introducing new drugs and regimens. Int J Tuberc Lung Dis 2021; 24:1067-1072. [PMID: 33126941 DOI: 10.5588/ijtld.20.0136] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND: Addressing TB in India is critical to meeting global targets. With the scale-up of diagnostic networks and the availability of new TB drugs, India had the opportunity to improve the detection and treatment outcomes in drug-resistant TB (DR-TB).OBJECTIVE: To document how the introduction of new drugs and regimens is helping India improve the care of DR-TB patients.DESIGN: In 2016, India´s National TB Programme (NTP) introduced bedaquiline (BDQ) under a Conditional Access Programme (BDQ-CAP) at six sites after providing extensive training and strengthening laboratory testing, pre-treatment evaluation, active drug safety monitoring and management (aDSM) and follow-up systems.RESULTS: An interim analysis reflected earlier and better culture conversion rates: 83% of the 620 patients converted within a median time of 60 days. However, 248 serious adverse events were reported, including 73 deaths (12%) and 100 cardiotoxicity events (16.3%). Encouraged by the evidence of safety and efficacy of BDQ, the NTP took steps to systematically expand its access to cover the entire population by 2018.CONCLUSION: The cautious yet focused approach used to introduce BDQ under BDQ-CAP paved the way for the rapid introduction of delamanid, as well as the shorter treatment regimen and the all-oral regimen for DR-TB.
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Affiliation(s)
- K S Sachdeva
- Central TB Division, Ministry of Health and Family Welfare, Government of India, New Delhi
| | - N Arora
- International Union Against Tuberculosis and Lung Disease South East Asia, New Delhi
| | - R Solanki
- BJ Medical College and Hospital, Ahmedabad
| | - R Singla
- National Institute for TB and Respiratory Disease, New Delhi
| | - R Sarin
- National Institute for TB and Respiratory Disease, New Delhi
| | - A Bhatnagar
- Rajan Babu Institute for Pulmonary Medicine and Tuberculosis, New Delhi
| | - A Khanna
- Government of National Capital Territory of Delhi, New Delhi
| | - A Atahavale
- King Edward Memorial College & Group of TB Hospital, Mumbai
| | - R Shridhar
- Government Hospital of Thoracic Medicine, Chennai
| | | | - M Parmar
- World Health Organisation, India Country Office, New Delhi
| | - S I Farooq
- International Union Against Tuberculosis and Lung Disease South East Asia, New Delhi
| | - R Ramachandran
- World Health Organisation, India Country Office, New Delhi
| | - U Alavadi
- United States Agency for International Development India, New Delhi, India
| | - R Swamickan
- United States Agency for International Development India, New Delhi, India
| | - J Tonsing
- International Union Against Tuberculosis and Lung Disease South East Asia, New Delhi
| | - Y Patel
- Central TB Division, Ministry of Health and Family Welfare, Government of India, New Delhi
| | - N Singla
- National Institute for TB and Respiratory Disease, New Delhi
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19
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SULAIMAN S, Ramachandran R, Prabhahar A, Kohli H. POS-774 BORTEZOMIB BASED CHEMOTHERAPY AND BONE MARROW FOLLOWED BY RENAL TRANSPLANTATION IN MULTIPLE MYELOMA: CASE REPORT AND SYSTEMATIC REVIEW. Kidney Int Rep 2021. [DOI: 10.1016/j.ekir.2021.03.806] [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: 10/21/2022] Open
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20
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Ramachandran R, Arutchelvan K. Named entity recognition on bio-medical literature documents using hybrid based approach. J Ambient Intell Humaniz Comput 2021:1-10. [PMID: 33723489 PMCID: PMC7947151 DOI: 10.1007/s12652-021-03078-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Accepted: 03/02/2021] [Indexed: 06/02/2023]
Abstract
There have been many changes in the medical field due to technological advances. The progression in technologies provides lot of opportunities to extract valuable insights from huge amount of unstructured data. The literature documents published by the researchers in medical domain consists enormous amount of knowledge. Many organizations are involving in retrieving the hidden information from the literature documents. Extracting the drug names, diseases, symptoms, route of administration, species and dosage forms from the textual document is an easy task due to the innovation of technologies in the Natural Language Processing. In this article, a new hybrid based approach is proposed to identify named entity from the medical literature documents. New dictionary has been built for route of administration, dosage forms and symptoms to annotate the entities in the medical documents. The annotated entities are trained by the blank Spacy machine learning model. The trained model provide a decent accuracy when compared with the existing model. The hybrid model is validated with the dictionary and human (optional)to calculate the confusion matrix. It is able to identify more entities than the prevailing model. The average F1 score for five entities of the proposed hybrid based approach 73.79%.
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Affiliation(s)
- R. Ramachandran
- Department of Computer and Information Science, Annamalai University, Tamil Nadu, Chidambaram, India
| | - K. Arutchelvan
- Department of Computer and Information Science, Annamalai University, Tamil Nadu, Chidambaram, India
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21
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Kim MK, Ramachandran R, Séguin CA. Spatiotemporal and functional characterisation of transient receptor potential vanilloid 4 (TRPV4) in the murine intervertebral disc. Eur Cell Mater 2021; 41:194-203. [PMID: 33620083 DOI: 10.22203/ecm.v041a14] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [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: 01/31/2023] Open
Abstract
The molecular regulators of mechano-transduction in intervertebral disc (IVD) cells are not well understood. The aim of the present study was to characterise the expression and function of the mechano-sensitive ion channel TRPV4 in the IVD. A novel transgenic reporter mouse, in which the endogenous Trpv4 locus drove the expression of LacZ, was used to localise Trpv4 expression at specific stages of spine development [embryonic day (E) 8.5, 12.5, 17.5, postnatal day 1] and time points following skeletal maturity (2.5, 6, 9 and 12 months). The TRPV4-specific agonist GSK1016790A and antagonist GSK2193874 were used to assess the functional response of annulus fibrosus (AF) cells using epifluorescence imaging with Ca2+-sensitive Fura-2 dye and F-actin staining. The effects of TRPV4 agonism and antagonism in mechanically stimulated AF cells were quantified by gene expression analysis. Trpv4 expression was specific to the developing notochord and intervertebral mesenchyme at E12.5. At 2.5, 6 and 9 months, Trpv4 expression was detected in the nucleus pulposus, inner AF, cartilage endplate and vertebral growth plate. AF cells treated with GSK1016790A demonstrated heterogeneity in TRPV4-dependent Ca2+ responses (no response, calcium oscillation or sustained response). TRPV4-induced Ca2+ signalling was associated with Rho/ROCK-dependent actin cytoskeleton remodelling and stress-fibre formation. In AF cells, cyclic-tensile-strain-induced changes in Acan and Prg4 expression were mediated by TRPV4 channel activation. These data establish TRPV4 as an important mechano- sensor regulating IVD mechano-biology.
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Affiliation(s)
| | | | - C A Séguin
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario, N6A 5C1,
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22
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Rebesco G, Ramachandran R, Bae S, Dobelbower M, McDonald A, Spencer S, Willey C, Bonner J, Keene K. A Pilot Study Investigating the Opioid Prescribing Patterns in an Academic Radiation Oncology Clinic. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1420] [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: 10/23/2022]
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23
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Ramachandran R, Vinothkumar A, Sankarganesh D, Suriyakalaa U, Aathmanathan VS, Kamalakkannan S, Nithya V, Angayarkanni J, Archunan G, Akbarsha MA, Achiraman S. Detection of estrous biomarkers in the body exudates of Kangayam cattle (Bos indicus) from interplay of hormones and behavioral expressions. Domest Anim Endocrinol 2020; 72:106392. [PMID: 32105888 DOI: 10.1016/j.domaniend.2019.106392] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 08/25/2019] [Accepted: 09/02/2019] [Indexed: 12/30/2022]
Abstract
Behavioral expressions and biochemical composition of body exudates are significantly altered in concert with the endocrine status, which are all clear indicators of physiological conditions of animals. In this study, we sought to infer about the reproductive physiological status of Kangayam cattle (Bos indicus) by analyzing behaviors, endocrine pattern, and body exudates and further to discover estrous biomarkers so as to facilitate timely artificial insemination/mating and to aid in aspects of conservation of the species. Therefore, in this study, we followed Kangayam cows through pre-estrous to post-estrous phases to correlate the endocrine dependence of biochemical constituents in urine and cervical mucus and sought to identify estrous biomarkers. Behavioral estrus was confirmed in 10 cows, from which urine samples were collected and subjected to determination of LH, FSH, estrogens, progesterone, proteins, and lipids. Furthermore, urinary fatty acids and proteins were profiled using gas chromatography and SDS-PAGE, respectively. The volatile compounds in the urine and cervical mucus were identified by gas chromatography-mass spectrometry analysis. The data revealed that LH, FSH, and estrogen levels increased significantly in estrous urine compared with nonestrous urine, whereas progesterone status was vice versa (P < 0.05). The lipid content was also significantly higher in estrous urine than in pre- and post-estrous urines (P < 0.05). There were also cyclical variations of volatiles and fatty acid profiles across phases of the estrous cycle. More acidic compounds were present in estrous urine, rendering it more acidic, than in pre- and post-estrous urines. Interestingly, oleic acid, which was present as a fatty acid in estrous and post-estrous urines, appeared to be a volatile in post-estrous urine and estrous cervical mucus. In addition, octanoic and butanoic acids were specific to both estrous urine and cervical mucus, indicating their possible candidature as estrous biomarkers. SDS-PAGE analysis showed pronounced expression of a 98 kDa protein in post-estrous urine, which in matrix-assisted laser desorption ionization-time of flight mass spectrometry was identified as albumin. Our results demonstrate multiple biomarkers in estrous urine and specific volatiles in cervical mucus that offer scope to develop viable estrus detection kits for Kangayam cows.
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Affiliation(s)
- R Ramachandran
- Department of Environmental Biotechnology, School of Environmental Sciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu 620024, India; Department of Microbial Biotechnology, Bharathiar University, Coimbatore, Tamil Nadu 641046, India
| | - A Vinothkumar
- Department of Environmental Biotechnology, School of Environmental Sciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu 620024, India
| | - D Sankarganesh
- Department of Microbial Biotechnology, Bharathiar University, Coimbatore, Tamil Nadu 641046, India; Department of Biotechnology, School of Bio and Chemical Engineering, Kalasalingam Academy of Research and Education, Krishnankoil, Tamil Nadu 626126, India
| | - U Suriyakalaa
- Department of Environmental Biotechnology, School of Environmental Sciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu 620024, India; Department of Microbial Biotechnology, Bharathiar University, Coimbatore, Tamil Nadu 641046, India
| | - V S Aathmanathan
- Department of Environmental Biotechnology, School of Environmental Sciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu 620024, India
| | - S Kamalakkannan
- Department of Zoology, Bishop Heber College, Tiruchirappalli, Tamil Nadu 620017, India
| | - V Nithya
- Department of Animal Health and Management, Alagappa University, Karaikudi, Tamil Nadu 630003, India
| | - J Angayarkanni
- Department of Microbial Biotechnology, Bharathiar University, Coimbatore, Tamil Nadu 641046, India
| | - G Archunan
- Pheromone Technology Laboratory, Department of Animal Science, Bharathidasan University, Tiruchirappalli, Tamil Nadu 620024, India
| | - M A Akbarsha
- Research Co-ordinator, National College (Autonomous), Tiruchirappalli, Tamilnadu 620001, India
| | - S Achiraman
- Department of Environmental Biotechnology, School of Environmental Sciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu 620024, India.
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Girimaji N, Duseja R, Kohli H, Ramachandran R. SAT-400 RITUXIMAB IN THE TREATMENT OF COLLAPSING FOCAL SEGMENTAL GLOMERULOSCLEROSIS- A CASE SERIES. Kidney Int Rep 2020. [DOI: 10.1016/j.ekir.2020.02.424] [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: 10/24/2022] Open
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25
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prabakaran MD R, Gupta K, sharma A, Kohli H, Ramachandran R. SUN-293 LOW-DOSE VALGANCICLOVIR IS AS EFFECTIVE AS THE STANDARD DOSE PROPHYLAXIS FOR CYTOMEGALOVIRUS IN RENAL TRANSPLANT RECIPIENTS. Kidney Int Rep 2020. [DOI: 10.1016/j.ekir.2020.02.830] [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: 10/24/2022] Open
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26
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NAYAK S, Prabhahar A, Bahuguna P, Gupta K, Kohli H, Ramachandran R. SUN-003 ONLINE HEMODIAFILTRATION (POST-DILUTION) AS COMPARED TO HIGH FLUX HEMODIALYSIS DOES NOT IMPROVE OUTCOMES IN COMMUNITY ACQUIRED AKI WITH SIRS- A RANDOMISED CONTROLLED TRIAL. Kidney Int Rep 2020. [DOI: 10.1016/j.ekir.2020.02.525] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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27
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Ramachandran R, Bharati J, Kohli H. SUN-372 CD 19 targeted Rituximab is safe and effective in the management of Steroid dependent/resistant Podocytopathy. Kidney Int Rep 2020. [DOI: 10.1016/j.ekir.2020.02.911] [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: 11/30/2022] Open
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28
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INAMDAR N, Prabhahar A, Tomer S, Bansal A, Gorsi U, Arora S, Gupta K, Kohli H, Ramachandran R. SAT-016 ENDOTHELIAL DYSFUNCTION REVERSES WITH RENAL FUNCTION RECOVERY IN PATIENTS WITH DIALYSIS REQUIRING COMMUNITY-ACQUIRED AKI WITH SIRS. Kidney Int Rep 2020. [DOI: 10.1016/j.ekir.2020.02.020] [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: 10/24/2022] Open
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29
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Gupta K, Girimaji N, Ramachandran R, Rathi M, Rakha A, Sharma A, Duseja R. SAT-402 STUDY OF T-REGULATORY CELLS AND B-REGULATORY CELLS IN LUPUS NEPHRITIS: A PROSPECTIVE CONTROLLED STUDY. Kidney Int Rep 2020. [DOI: 10.1016/j.ekir.2020.02.426] [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: 10/24/2022] Open
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30
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Murhekar M, Joshua V, Kanagasabai K, Shete V, Ravi M, Ramachandran R, Sabarinathan R, Kirubakaran B, Gupta N, Mehendale S. Epidemiology of dengue fever in India, based on laboratory surveillance data, 2014–2017. Int J Infect Dis 2019; 84S:S10-S14. [DOI: 10.1016/j.ijid.2019.01.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Revised: 01/05/2019] [Accepted: 01/07/2019] [Indexed: 11/17/2022] Open
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31
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Prudenzano D, Lique F, Ramachandran R, Bizzocchi L, Caselli P. Collisional excitation of NH( 3Σ -) by Ar: A new ab initio 3D potential energy surface and scattering calculations. J Chem Phys 2019; 150:214302. [PMID: 31176333 DOI: 10.1063/1.5097651] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Collisional excitation of light hydrides is important to fully understand the complex chemical and physical processes of atmospheric and astrophysical environments. Here, we focus on the NH(X3Σ-)-Ar van der Waals system. First, we have calculated a new three-dimensional Potential Energy Surface (PES), which explicitly includes the NH bond vibration. We have carried out the ab initio calculations of the PES employing the open-shell single- and double-excitation couple cluster method with noniterative perturbational treatment of the triple excitations. To achieve a better accuracy, we have first obtained the energies using the augmented correlation-consistent aug-cc-pVXZ (X = T, Q, 5) basis sets and then we have extrapolated the final values to the complete basis set limit. We have also studied the collisional excitation of NH(X3Σ-)-Ar at the close-coupling level, employing our new PES. We calculated collisional excitation cross sections of the fine-structure levels of NH by Ar for energies up to 3000 cm-1. After thermal average of the cross sections, we have then obtained the rate coefficients for temperatures up to 350 K. The propensity rules between the fine-structure levels are in good agreement with those of similar collisional systems, even though they are not as strong and pronounced as for lighter systems, such as NH-He. The final theoretical values are also compared with the few available experimental data.
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Affiliation(s)
- D Prudenzano
- Center for Astrochemical Studies, Max-Planck-Institut für Extraterrestrische Physik, Gießenbachstraße 1, 85748 Garching, Germany
| | - F Lique
- LOMC-UMR 6294, CNRS-Université du Havre, 25 Rue Philippe Lebon, BP 1123, 76063 Le Havre, France
| | - R Ramachandran
- LOMC-UMR 6294, CNRS-Université du Havre, 25 Rue Philippe Lebon, BP 1123, 76063 Le Havre, France
| | - L Bizzocchi
- Center for Astrochemical Studies, Max-Planck-Institut für Extraterrestrische Physik, Gießenbachstraße 1, 85748 Garching, Germany
| | - P Caselli
- Center for Astrochemical Studies, Max-Planck-Institut für Extraterrestrische Physik, Gießenbachstraße 1, 85748 Garching, Germany
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Agrawal P, Nada R, Ramachandran R, Rayat CS, Kumar A, Kohli HS. Loss of Subpodocytic Space Predicts Poor Response to Tacrolimus in Steroid-Resistant Calcineurin Inhibitor-Naïve Adult-Onset Primary Focal Segmental Glomerulosclerosis. Indian J Nephrol 2019; 29:90-94. [PMID: 30983748 PMCID: PMC6440328 DOI: 10.4103/ijn.ijn_422_17] [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] [Indexed: 11/06/2022] Open
Abstract
Focal segmental glomerulosclerosis (FSGS) is the most common cause of adult-onset nephrotic syndrome, but its pathophysiology is poorly understood. The question as to why only a subset of patients responds to treatment in unanswered. In the past few years, change of podocytic phenotype from stationary type in health to migratory type in disease has been described, of which loss of subpodocytic space is a surrogate marker. Diagnostic biopsies of adult-onset steroid-resistant calcineurin inhibitor-naïve primary FSGS cases, which were subsequently treated with tacrolimus were included in this retrospective study conducted from 2011 to 2013. The ultrastructure of all cases was studied in detail, especially in context to the presence or absence of subpodocytic space. In the present study, we have compared presence or absence of subpodocytic space in tacrolimus-responsive versus tacrolimus-resistant cases to identify potential electron microscopic features predictive of response to treatment, of which loss of subpodocytic space indicating migratory phenotype is the most important and consistent feature. The present series included 7 tacrolimus responsive cases (includes two cases with partial response) and seven tacrolimus-resistant cases. The tacrolimus-resistant patients were of older age, had a longer duration of illness, and a lower eGFR as compared to tacrolimus responsive cases. The subpodocytic space was preserved in patients on tacrolimus with complete remission and lost in patients with partial response and tacrolimus-resistant cases.
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Affiliation(s)
- P Agrawal
- Department of Histopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - R Nada
- Department of Histopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - R Ramachandran
- Department of Nephrology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - C S Rayat
- Department of Histopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - A Kumar
- Department of Histopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - H S Kohli
- Department of Nephrology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Singh N, Pattanashetti N, Joshi K, Kohli HS, Gupta KL, Ramachandran R. Missed Monoclonal Disease Manifesting in Early Post-renal Transplant Period. Indian J Nephrol 2019; 29:65-69. [PMID: 30814798 PMCID: PMC6375021 DOI: 10.4103/ijn.ijn_384_17] [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] [Indexed: 12/02/2022] Open
Abstract
A 63-year-old diabetic gentleman with microvascular complications presented with advanced azotemia and anemia. He was stabilized with blood transfusion and hemodialysis. With the probable diagnosis of diabetic nephropathy-related end-stage renal disease, he underwent kidney transplantation. He had delayed graft function. Graft biopsy done on the 2nd postoperative day showed acute tubular necrosis. Graft biopsy repeated after 2 weeks for persistent graft dysfunction showed myeloma cast nephropathy (MCN) and light chain proximal tubulopathy. Work-up for multiple myeloma was positive. He was started on plasmapheresis and chemotherapy. However, he suffered sudden cardiac death during dialysis after 1 week. The presence of MCN in the early graft biopsy implies that it must have been the cause for his native kidney failure. Thus, renal failure in a diabetic should not always be presumed to be due to diabetic nephropathy, and kidney biopsy should be done in diabetics with atypical features.
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Affiliation(s)
- N Singh
- Department of Nephrology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - N Pattanashetti
- Department of Nephrology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - K Joshi
- Department of Pathology, Medicos Centre, Chandigarh, India
| | - H S Kohli
- Department of Nephrology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - K L Gupta
- Department of Nephrology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - R Ramachandran
- Department of Nephrology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Murhekar M, Kanagasabai K, Shete V, Joshua V, Ravi M, Kirubakaran BK, Ramachandran R, Sabarinathan R, Gupta N. Epidemiology of chikungunya based on laboratory surveillance data—India, 2016–2018. Trans R Soc Trop Med Hyg 2019; 113:259-262. [DOI: 10.1093/trstmh/try141] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 11/14/2018] [Accepted: 12/14/2018] [Indexed: 11/12/2022] Open
Affiliation(s)
- Manoj Murhekar
- Indian Council of Medical Research–National Institute of Epidemiology, R127, Tamil Nadu Housing Board, Ayapakkam, Chennai, Tamil Nadu, India
| | - K Kanagasabai
- Indian Council of Medical Research–National Institute of Epidemiology, R127, Tamil Nadu Housing Board, Ayapakkam, Chennai, Tamil Nadu, India
| | - Vishal Shete
- Indian Council of Medical Research–National Institute of Epidemiology, R127, Tamil Nadu Housing Board, Ayapakkam, Chennai, Tamil Nadu, India
| | - Vasna Joshua
- Indian Council of Medical Research–National Institute of Epidemiology, R127, Tamil Nadu Housing Board, Ayapakkam, Chennai, Tamil Nadu, India
| | - M Ravi
- Indian Council of Medical Research–National Institute of Epidemiology, R127, Tamil Nadu Housing Board, Ayapakkam, Chennai, Tamil Nadu, India
| | - B K Kirubakaran
- Indian Council of Medical Research–National Institute of Epidemiology, R127, Tamil Nadu Housing Board, Ayapakkam, Chennai, Tamil Nadu, India
| | - R Ramachandran
- Indian Council of Medical Research–National Institute of Epidemiology, R127, Tamil Nadu Housing Board, Ayapakkam, Chennai, Tamil Nadu, India
| | - R Sabarinathan
- Indian Council of Medical Research–National Institute of Epidemiology, R127, Tamil Nadu Housing Board, Ayapakkam, Chennai, Tamil Nadu, India
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Sankarganesh D, Ramachandran R, Suriyakalaa U, Ramesh Saravanakumar V, Archunan G, Akbarsha MA, Achiraman S. Assessment of urinary volatile compounds and proteins in the female goat Capra hircus: A pilot study to reveal potential indicators of oestrus. Reprod Domest Anim 2019; 54:646-651. [PMID: 30659685 DOI: 10.1111/rda.13407] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 07/06/2018] [Accepted: 12/29/2018] [Indexed: 11/29/2022]
Abstract
Urine samples of female goats in pro-oestrus, oestrus and post-oestrus phases were analysed for finding oestrus-specific volatile compounds using gas chromatograph-mass spectrometry (GC-MS), and proteins using sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) and matrix-assisted laser desorption-ionization time-of-flight mass spectrometry (MALDI-TOF MS). Fourteen urinary volatile were identified covering all three phases among which four compounds, 1-Tetradecanol, n-Pentadecanol, 3-Methylene tridecane and 2-Ethyl-1-dodecene, were unique to oestrus. Also, oestrus urine contained a 25 kDa protein, which was totally absent in pro-oestrus urine, and less-expressed in post-oestrus urine. This protein revealed to be complement C3 fragment. This pilot study, for the first time, reveals the difference in urinary volatile compounds and proteins in the female goat during the different phases of oestrous cycle. The four unique volatile compounds and a 25 kDa protein that appeared as oestrus-specific in this study warrant further investigation to consider them as urinary biomarkers of oestrus in goats.
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Affiliation(s)
- D Sankarganesh
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, India.,Department of Biotechnology, School of Bio and Chemical Engineering, Kalasalingam Academy of Research and Education, Krishnankoil, India
| | - R Ramachandran
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, India.,Department of Microbial Biotechnology, Bharathiar University, Coimbatore, India
| | - U Suriyakalaa
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, India.,Department of Microbial Biotechnology, Bharathiar University, Coimbatore, India
| | - V Ramesh Saravanakumar
- Department of Livestock Production and Management, Veterinary College and Research Institute, Namakkal, India
| | - G Archunan
- Pheromone Technology Laboratory, Department of Animal Science, Bharathidasan University, Tiruchirappalli, India
| | - M A Akbarsha
- National College (Autonomous), Tiruchirappalli, India
| | - S Achiraman
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, India
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Pattanashetti N, Gupta S, Rana S, Dahiya D, Das A, Kumar V, Rathi M, Kohli HS, Gupta KL, Ramachandran R. Intestinal Tuberculosis: A Rare Case of Massive Gastrointestinal Bleed in a Post-Renal Transplant Recipient. Indian J Nephrol 2019; 29:132-134. [PMID: 30983756 PMCID: PMC6440334 DOI: 10.4103/ijn.ijn_360_17] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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] [Indexed: 11/04/2022] Open
Abstract
Massive rectal bleeding is an uncommon presentation of ileal tuberculosis (TB). We report an uncommon cause of anemia in a post-renal transplant patient due to massive lower gastrointestinal (LGI) bleed. The index case had a normal upper and LGI endoscopy, but the 99technetium labeled red blood cell scan showed active bleeding from terminal ileum and caecum. Microscopic examination of the resected specimen revealed tubercular granuloma with acid-fast bacilli. Intestinal TB should be a differential diagnosis for massive LGI bleed in immunosuppressed patients in developing country.
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Affiliation(s)
| | - S Gupta
- Department of Internal Medicine, PGIMER, Chandigarh, India
| | - S Rana
- Department of Gastroenterology, PGIMER, Chandigarh, India
| | - D Dahiya
- Department of General Surgery, PGIMER, Chandigarh, India
| | - A Das
- Department of Histopathology, PGIMER, Chandigarh, India
| | - V Kumar
- Department of Nephrology, PGIMER, Chandigarh, India
| | - M Rathi
- Department of Nephrology, PGIMER, Chandigarh, India
| | - H S Kohli
- Department of Nephrology, PGIMER, Chandigarh, India
| | - K L Gupta
- Department of Nephrology, PGIMER, Chandigarh, India
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Senanayake HM, Patabendige M, Ramachandran R. Piloting of WHO Safe Childbirth Checklist using a modified version in Sri Lanka. BMC Res Notes 2018; 11:896. [PMID: 30547838 PMCID: PMC6295046 DOI: 10.1186/s13104-018-4009-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 12/10/2018] [Indexed: 12/03/2022] Open
Abstract
OBJECTIVES Data was gathered to study the impact of a context-specific modified WHO Safe Childbirth Checklist (mSCC) at two tertiary care settings in Sri Lanka, as a part of an implementation program. DATA DESCRIPTION We provide data sets of a prospective observational study which was conducted in the University Obstetrics Unit at De Soysa Hospital for Women (DSHW), Colombo and two Obstetric Units at Teaching Hospital, Mahamodara, Galle (THMG), Sri Lanka. These consist of demographic and checklist implementation details and data on the level of acceptance. The study was conducted over 8 weeks at DSHW and over 4 weeks at THMG. Checklists were kept attached to clinical records at admission and collected on discharge. Level of acceptance was assessed using a self-administered questionnaire. Outcome measures were adoption rate (percentage of deliveries where mSCC was used), adherence to practices (mean percentage of items checked in each checklist), response rate (percentage of staff members who responded to questionnaire) and level of acceptance (percentage of "strongly agree/agree" in Likert scale to five questions regarding acceptance of modified SCC).
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Affiliation(s)
- H. M. Senanayake
- Faculty of Medicine, University of Colombo, Colombo, Sri Lanka
- University Obstetrics Unit, De Soysa Hospital for Women, Colombo, Sri Lanka
| | - M. Patabendige
- University Obstetrics Unit, Teaching Hospital, Mahamodara, Galle, Sri Lanka
| | - R. Ramachandran
- University Obstetrics Unit, De Soysa Hospital for Women, Colombo, Sri Lanka
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dos Santos M, Ramachandran R, Kiess A, Wamsley K, McDaniel C. The Impact of Dietary Yeast Fermentation Product Derived from Saccharomyces cerevisiae on Semen Quality and Semen Microbiota of Aged White Leghorn roosters. J APPL POULTRY RES 2018. [DOI: 10.3382/japr/pfy050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Sethi J, Bagai S, Ramachandran R, Kumar V, Rathi M, Kohli HS, Gupta KL. Time to Revisit the Use of Nontunneled Dialysis Vascular Catheters Even in Cost-Limited Setting. Indian J Nephrol 2018; 28:406-407. [PMID: 30271008 PMCID: PMC6146739 DOI: 10.4103/ijn.ijn_443_17] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- J Sethi
- Department of Nephrology, PGIMER, Chandigarh, India
| | - S Bagai
- Department of Nephrology, PGIMER, Chandigarh, India
| | | | - V Kumar
- Department of Nephrology, PGIMER, Chandigarh, India
| | - M Rathi
- Department of Nephrology, PGIMER, Chandigarh, India
| | - H S Kohli
- Department of Nephrology, PGIMER, Chandigarh, India
| | - K L Gupta
- Department of Nephrology, PGIMER, Chandigarh, India
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40
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Ramachandran R, Nascimento Dos Santos M, Kawaoku AJT, McDaniel CD. Roles of the sire and dam quail in egg, yolk, albumen, and shell weight alterations due to the parthenogenetic trait. Theriogenology 2018; 118:103-109. [PMID: 29886356 DOI: 10.1016/j.theriogenology.2018.05.026] [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] [Received: 05/09/2017] [Revised: 05/18/2018] [Accepted: 05/23/2018] [Indexed: 10/14/2022]
Abstract
Infertile eggs from Chinese Painted quail exhibit parthenogenesis, and the 1st egg in a clutch sequence is more likely to develop a parthenogenetic embryo. Also, hens that exhibit parthenogenesis have shorter clutches and heavier egg weights. These larger eggs may be a result of the egg residing in the oviduct longer, allowing more time for the parthenote to develop. However, it is unknown which components of the egg are altered due to the parthenogenetic trait or the role of dams and sires from the parthenogenetic line of quails in these alterations. Therefore, our objective was to determine if the parthenogenetic trait in dams, sires, or both contributes to alterations in egg components, such as yolk, albumen, and shell weights. Two selected lines of quail, 1 line selected for parthenogenesis and 1 line that was unselected for the parthenogenetic trait (control), were utilized in a 2 x 2 factorial arrangement of dam and sire lines to create 4 breeding treatments: control dams + control sires (CC), control dams + parthenogenetic sires (CP), parthenogenetic dams + control sires (PC), parthenogenetic dams + parthenogenetic sires (PP). Daily, fresh eggs were collected, labeled, weighed, and the germinal disc was classified as fertile, unfertilized without development, or parthenote. Yolk, albumen, and shell weights were obtained, and their weights were also calculated as percentage of total egg weight. A dam main effect revealed heavier weights for total egg, yolk, albumen, and shell as well as a larger percentage of albumen and ratio of albumen to yolk in parthenogenetic line dams versus control line dams. However, the percentage of yolk was higher for control than parthenogenetic line dams. The increase in total egg and egg component weights due to the parthenogenetic trait suggests that the transit time of the egg through the oviduct is altered. Perhaps transit through the magnum and uterus is delayed the most yielding greater albumen and shell weights, respectively.
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Affiliation(s)
- R Ramachandran
- Department of Poultry Science, Mississippi State University, Mississippi State, MS, USA
| | | | - A J T Kawaoku
- Department of Poultry Science, Mississippi State University, Mississippi State, MS, USA
| | - C D McDaniel
- Department of Poultry Science, Mississippi State University, Mississippi State, MS, USA.
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dos Santos M, Ramachandran R, Kiess A, Wamsley K, McDaniel C. Impact of in vitro inoculation and dietary supplementation with Bacillus subtilis on sperm quality of aged White Leghorn roosters. J APPL POULTRY RES 2018. [DOI: 10.3382/japr/pfx072] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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Wierzbicki A, Kohli M, Patel K, McMahon Z, Ramachandran R, Crook M, Reynolds T. Pro-protein subtilisin kexin-9 (PCSK9) inhibition in practice: Lipid clinic experience in 2 contrasting UK centres. Atherosclerosis 2018. [DOI: 10.1016/j.atherosclerosis.2018.06.274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Ramachandran R, Prakash G, Viswanathamurthi P, Malecki J. Ruthenium(II) complexes containing phosphino hydrazone/thiosemicarbazone ligand: An efficient catalyst for regioselective N-alkylation of amine via borrowing hydrogen methodology. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.03.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abstract
Parthenogenesis or 'virgin birth' is embryonic development in unfertilized eggs. It is a routine means of reproduction in many invertebrates. However, even though parthenogenesis occurs naturally in even more advanced vertebrates, like birds, it is mostly abortive in nature. In fact, multiple limiting factors, such as delayed and unorganized development as well as unfavorable conditions developing within the unfertilized egg upon incubation, are associated with termination of progressive development of parthenogenetic embryos. In birds, diploid parthenogenesis is automictic and facultative producing only males. However, the mechanisms controlling parthenogenesis in birds are not clearly elucidated. Additionally, it appears from even very recent research that these mechanisms may hinder the normal fertilization process and subsequent embryonic development. For instance, virgin quail and turkey hens exhibiting parthenogenesis have reduced reproductive performance following mating. Also, genetic selection and environmental factors, such as live virus vaccinations, are known to trigger the process of parthenogenesis in birds. Therefore, parthenogenesis has a plausible negative impact on the poultry industry. Hence, a better understanding of parthenogenesis and the mechanisms that control it could benefit commercial poultry production. In this context, the aim of this review is to provide a complete overview of the process of parthenogenesis in birds.
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Affiliation(s)
- R Ramachandran
- Department of Poultry Science, Mississippi State UniversityMississippi State, Mississippi, USA
| | - C D McDaniel
- Department of Poultry Science, Mississippi State UniversityMississippi State, Mississippi, USA
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45
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Muthu V, Ramachandran R, Nada R, Kumar V, Rathi M, Kohli HS, Jha V, Gupta KL, Sakhuja V. Clinicopathological Spectrum of Glomerular Diseases in Adolescents: A Single-center Experience over 4 Years. Indian J Nephrol 2018. [PMID: 29515296 PMCID: PMC5830804 DOI: 10.4103/ijn.ijn_239_16] [Citation(s) in RCA: 5] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
The spectrum of biopsy-proven glomerular disease was studied from a single center in Northwestern India, among adolescents aged 13–19 years. From January 2009 to December 2012, a total of 177 patients with biopsy-proven glomerular disease were studied. The same pathologist reported all the biopsy specimens after subjecting to light, immunofluorescence, and electron microscopy. The clinical profile and laboratory findings of the patients were correlated with the histopathological spectrum of glomerular diseases. Males formed 71.19% (n = 126) and the remaining 28.81% (n = 51) were females. Lupus nephritis had a strong female predominance, whereas minimal change disease (MCD) and focal segmental glomerulosclerosis (FSGS) had a male predominance. Nephrotic syndrome was the indication for biopsy in 65% of the cases. Rapidly progressive renal failure and acute nephritis were the next common indications accounting for 14% and 7%, respectively. FSGS was the most common glomerular disease in adolescents (n = 45, 25.4%). The next common were MCD and lupus nephritis each contributing 21.6% and 10.7%, respectively. Primary glomerular diseases accounted for 84.75% (n = 150) of the total. The remaining 15.25% (n = 27) were attributed to secondary glomerular diseases, of which lupus nephritis was the most common, i.e., in 70.4% patients (n = 19). FSGS was the most common histology in adolescent nephrotic participants (37%). MCD was the next common, found in 31% of nephrotic patients. Electron microscopy changed the diagnosis made by light microscopy and immunofluorescence in 5.6% cases only, and it confirmed the diagnosis in another 21.6%. Kidney biopsy in adolescents is a safe procedure. The spectrum of glomerular diseases in adolescents is different from that seen in adults and smaller children.
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Affiliation(s)
- V Muthu
- Department of Internal Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - R Ramachandran
- Department of Nephrology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - R Nada
- Department of Histopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - V Kumar
- Department of Nephrology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - M Rathi
- Department of Nephrology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - H S Kohli
- Department of Nephrology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - V Jha
- Department of Nephrology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - K L Gupta
- Department of Nephrology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - V Sakhuja
- Department of Nephrology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Abstract
We present a new three-dimensional potential energy surface (PES) for the NH(X3Σ-)-He van der Waals system, which explicitly takes into account the NH vibrational motion. The NH-He PES was obtained using the open-shell single- and double-excitation coupled cluster approach with non-iterative perturbational treatment of triple excitations. The augmented correlation-consistent aug-cc-pVXZ (X = Q, 5, 6) basis sets were employed, and the energies obtained were then extrapolated to the complete basis set limit. Using this new PES, we have studied the spectroscopy of the NH-He complex and we have determined a new rotational constant that agrees well with the available experimental data. Collisional excitation of NH(X3Σ-) by He was also studied at the close-coupling level. Calculations of the collisional excitation cross sections of the fine-structure levels of NH by He were performed for energies up to 3500 cm-1, which yield, after thermal average, rate coefficients up to 350 K. The calculated rate coefficients are compared with available experimental measurements at room temperature, and a reasonably good agreement is found between experimental and theoretical data.
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Affiliation(s)
- R Ramachandran
- LOMC-UMR 6294, CNRS-Université du Havre, 25 Rue Philippe Lebon, BP 1123, 76 063 Le Havre Cedex, France
| | - J Kłos
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742-2021, USA
| | - F Lique
- LOMC-UMR 6294, CNRS-Université du Havre, 25 Rue Philippe Lebon, BP 1123, 76 063 Le Havre Cedex, France
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Affiliation(s)
- C. A. Maguire
- Department of Dermatology; St George's Healthcare NHS Trust; London UK
| | - H. Chong
- Department of Cellular Pathology; St George's Healthcare NHS Trust; London UK
| | - R. Ramachandran
- Department of Chemical Pathology and Metabolic Medicine; Guy's and St Thomas’ NHS Foundation Trust; London UK
| | - J. Popoola
- Department of Nephrology; St George's Healthcare NHS Trust; London UK
| | - V. Akhras
- Department of Dermatology; St George's Healthcare NHS Trust; London UK
| | - M. Singh
- Department of Dermatology; St George's Healthcare NHS Trust; London UK
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Singh N, Nada R, Rawat A, Sharma A, Sinha SK, Ramachandran R, Kumar V, Kohli HS, Gupta KL, Rathi M. Spectrum of IgG4-related Kidney Disease at a Tertiary Care Center. Indian J Nephrol 2018; 28:209-214. [PMID: 29962671 PMCID: PMC5998721 DOI: 10.4103/ijn.ijn_146_17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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] [Indexed: 12/24/2022] Open
Abstract
IgG4-related kidney disease (IgG4 RKD) is increasingly reported with varied manifestations. The present study was carried out to study the spectrum of IgG4 RKD. All patients with renal manifestation associated with conditions known to be associated with IgG4-related diseases (IgG4 RDs), or renal imaging or histology suggestive of IgG4 RKD were included and evaluated further. Patients with known extrarenal IgG4RD were also screened for renal involvement. Out of 40 patients screened over a period of 15 months, IgG4 RKD was diagnosed in 8. Majority were male (87.5%) with mean age being 56 years. Disease spectrum ranged from normal renal function in one to renal failure requiring dialysis in another two patients. Significant proteinuria was uncommon (12.5%) while hematuria was not seen in any patient. Tubulointerstitial nephritis was seen in all four patients who underwent kidney biopsy. Two patients had associated glomerular lesions in the form of immune complex crescentic glomerulonephritis. The most common imaging abnormality was hypodense renal lesions seen in 2 patients. Elevated IgG4 levels had 87.5% sensitivity and 78.3% specificity for IgG4 RKD and levels did not correlate with disease severity. Of 4 patients treated with steroids, 3 showed improvement in renal function. IgG4 RKD is an uncommon disease even at a referral tertiary care center. Elevated IgG4 levels alone are neither sensitive nor specific for the diagnosis of IgG4 RKD, and a combination of clinical, imaging, serological, and histological features are required for diagnosis.
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Affiliation(s)
- N Singh
- Department of Nephrology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - R Nada
- Department of Histopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - A Rawat
- Department of Paediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - A Sharma
- Department of Internal Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - S K Sinha
- Department of Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - R Ramachandran
- Department of Nephrology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - V Kumar
- Department of Nephrology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - H S Kohli
- Department of Nephrology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - K L Gupta
- Department of Nephrology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - M Rathi
- Department of Nephrology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Sethi J, Ramachandran R, Malhotra P, Nada R, Pinnamaneni VST, Kumar V, Rathi M, Kohli HS, Gupta KL. Plasma exchange in the management of new onset multiple myeloma with cast nephropathy treated with bortezomib based chemotherapy. Nephrology (Carlton) 2017; 22:1035-1036. [DOI: 10.1111/nep.12979] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 12/05/2016] [Indexed: 11/29/2022]
Affiliation(s)
- J Sethi
- Department of Nephrology; Postgraduate Institute of Medical Education and Research; Chandigarh India
| | - R Ramachandran
- Department of Nephrology; Postgraduate Institute of Medical Education and Research; Chandigarh India
| | - P Malhotra
- Department of Clinical Hematology; Postgraduate Institute of Medical Education and Research; Chandigarh India
| | - R Nada
- Department of Histopathology; Postgraduate Institute of Medical Education and Research; Chandigarh India
| | - VST Pinnamaneni
- Department of Nephrology; Postgraduate Institute of Medical Education and Research; Chandigarh India
| | - V Kumar
- Department of Nephrology; Postgraduate Institute of Medical Education and Research; Chandigarh India
| | - M Rathi
- Department of Nephrology; Postgraduate Institute of Medical Education and Research; Chandigarh India
| | - HS Kohli
- Department of Nephrology; Postgraduate Institute of Medical Education and Research; Chandigarh India
| | - KL Gupta
- Department of Nephrology; Postgraduate Institute of Medical Education and Research; Chandigarh India
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Pandey CA, Ravuri S, Ramachandran R, Santhosh R, Ghosh S, Sitaraman SR, Grace AN. Synthesis of NiS–Graphene Nanocomposites and its Electrochemical Performance for Supercapacitors. Int J Nanosci 2017. [DOI: 10.1142/s0219581x17600213] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The aim of this work is to synthesize nickel sulfide–graphene (NiS/G) nanocomposites with different compositions and to analyze the structural and electrochemical capacity and compatibility for their application as supercapacitor material with enhanced charge storage capacity and reduced impedance. NiS nanoparticles (NPs) loaded on graphene were synthesized at various concentrations of graphene by a simple hydrothermal route from nickel sulphate and graphene oxide as precursors in the presence of PVP as surfactant and thioacetamide (TAA) as sulfur source. The composites structural, morphological and physical properties were analyzed by X-ray diffraction (XRD), Field Emission Scanning Electron Microscopy (FE-SEM), Energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy (XPS) and Fourier Transform-infrared (FT-IR) analysis. SEM measurements showed the presence of surface attachment of the NiS NPs onto the graphene sheets. To assess the properties of the nanocomposites for their applicability in supercapacitors, electrochemical analysis was carried out in 6[Formula: see text]M KOH electrolyte. Three different samples with different graphene contents — GNiS-10 with 10 wt.%, GNiS-20 with 20 wt.% and GNiS-40 with 40 wt.% were prepared. The specific capacitances obtained for the nanocomposites were calculated to be 84.33[Formula: see text]F/g, 129.66[Formula: see text]F/g, 187.53[Formula: see text]F/g at 10[Formula: see text]mV/s scan rate, respectively. The EIS data showed that the loading of NiS NPs on graphene caused the reduction in impedance at high frequency and has a long cycle life (over 1000 cycles).
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Affiliation(s)
| | - Syamsai Ravuri
- Centre for Nanotechnology Research, VIT University, Vellore 632014, Tamil Nadu, India
| | - R. Ramachandran
- Centre for Nanotechnology Research, VIT University, Vellore 632014, Tamil Nadu, India
| | - R. Santhosh
- Centre for Nanotechnology Research, VIT University, Vellore 632014, Tamil Nadu, India
| | - Sourav Ghosh
- Centre for Nanotechnology Research, VIT University, Vellore 632014, Tamil Nadu, India
| | - S. R. Sitaraman
- Centre for Nanotechnology Research, VIT University, Vellore 632014, Tamil Nadu, India
| | - Andrews Nirmala Grace
- Centre for Nanotechnology Research, VIT University, Vellore 632014, Tamil Nadu, India
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