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Viswanathan S, Mohan L, John S, Bera P, Anandan C. Effect of surface finishing on the formation of nanostructure and corrosion behavior of Ni-Ti alloy. SURF INTERFACE ANAL 2016. [DOI: 10.1002/sia.6178] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Himashree G, Mohan L, Singh Y. Yoga Practice Improves Physiological and Biochemical Status at High Altitudes: A Prospective Case-control Study. Altern Ther Health Med 2016; 22:53-59. [PMID: 27622961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
UNLABELLED Context • High altitude (HA) is a psychophysiological stressor for natives of lower altitudes. Reducing the morbidity and optimizing the performance of individuals deployed in an HA region has been attempted and reported with varied results. Objective • The present study intended to explore the effects of comprehensive yogic practices on the health and performance of Indian soldiers deployed at HAs. Design • The research team designed a prospective, randomized, case-control study. SETTING The study was done at Karu, Leh, India, at an altitude of 3445 m. Participants • Fully acclimatized soldiers in the Indian army were randomly selected from those posted to HA regions (ie, altitudes >3000 m). Intervention • The soldiers were divided into 2 groups of equal size. The first group, the control group, carried out the routine activities for physical training in the Indian army. The second group, the intervention group practiced a comprehensive yoga package, including physical asanas, pranayama, and meditation, and did not perform the physical training that the first group did. Both groups were monitored during their activities. Outcome Measures • A wide and comprehensive range of anthropometrical, physiological, biochemical, and psychological parameters were measured: (1) height and weight; (2) body fat percentage (BFP); (3) heart rate (HR); (4) respiratory rate (RR); (5) systolic and diastolic blood pressure (DPB); (6) peripheral saturation of oxygen; (7) end tidal CO2 (EtCO2); (8) chest expansion; (9) pulmonary function; (10) physical work capacity (VO2Max); (11) hematological variables; (12) lipid profile; (13) serum urea; (14) creatinine; (15) liver enzymes; (16) blood glucose; and (17) anxiety scores. Measurements were made at baseline and postintervention. Results • Two-hundred soldiers took part in the study. The yoga group showed a significant improvement in health indices and performance as compared with the control group. They had lower weights, BFPs, RRs, DBPs, and anxiety scores. They also had a significantly higher EtCO2, forced vital capacity, forced expiratory volume in the first second (FEV1), and VO2Max. Also, the yoga group showed a significant reduction in serum cholesterol, low-density lipoprotein, triglycerides, and blood urea as compared with their preyoga levels and with the exercise group. Conclusions • Practice of yoga facilitates improvements in health and performance at HAs and is superior to routine training with physical exercises. Comprehensive yogic practices are an effective modality for improving health and performance at HAs.
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Viswanathan S, Mohan L, Bera P, Anandan C. Effect of oxygen plasma immersion ion implantation on the formation of nanostructures over Ni–Ti alloy. RSC Adv 2016. [DOI: 10.1039/c6ra11541a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Ni–Ti alloy has been implanted with oxygen ions by plasma immersion ion implantation. Ni–Ti–O nanotubes are formed by anodic oxidation of oxygen implanted Ni–Ti alloy.
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Agrawal S, Mohan L, Neyaz Z, Saxena R. 226P Radiological downstaging with neoadjuvant therapy in unresectable gall bladder cancers. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv523.87] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Dua S, Mohan L. Lower esophageal sphincter pressures in patients of bronchial asthma and its correlation with spirometric parameters: a case-control study. J Asthma 2015; 53:289-94. [PMID: 26365309 DOI: 10.3109/02770903.2015.1088548] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVES The cause-effect relationship between bronchial asthma and gastro-esophageal reflux (GER) is known, but studies have not been able to confirm the improvement of lung function with anti-acid therapy. Hypotensive lower esophageal sphincter (LES) may lead to both acid and non-acid reflux, resulting in asthma symptoms and decreased lung function. The objectives of our study were, firstly, to compare basal LES pressure between adult patients of asthma and normal controls and, secondly, to correlate the basal LES pressure with spirometric parameters in these patients. METHODS Thirty patients, aged between 18 and 65 years, diagnosed as cases of bronchial asthma and 27 healthy controls were included in the study. All the participants were subjected to esophageal manometry after overnight fasting and basal LES pressures were recorded. Then, spirometry was done 2 h after meal and pre- and post-bronchodilator FEV1, FVC, PEFR were obtained for the asthma group. RESULTS AND CONCLUSIONS There is significant difference between basal LES pressure in patients of bronchial asthma and control population (8.70 ± 2.67 mmHg versus 16.64 ± 5.52, p < 0.0001). 66.67% of the asthma patients have reduced LES pressures (<10 mmHg). The correlation coefficient between basal LES pressure and prebronchodilator FEV1% predicted is 0.596 (p < 0.0001, 95% CI 0.3002-0.7872). Obstructive airway impairment in adult patients of bronchial asthma is associated with hypotensive LES. GER, due to hypotensive LES may contribute to deterioration of spirometric parameters in asthma patients.
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Riyaz N, Sasidharanpillai S, Rahima S, Bindu V, Shaan M, Raghavan NT, Mohan L, Janardhanan AK. Pyoderma gangrenosum in association with microscopic colitis, idiopathic hypereosinophilic syndrome, selective IgE deficiency and diabetes mellitus. Clin Exp Dermatol 2015; 40:629-32. [DOI: 10.1111/ced.12618] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/20/2014] [Indexed: 12/31/2022]
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Mohan L, Anandan C, Rajendran N. Electrochemical behaviour and bioactivity of self-organized TiO2 nanotube arrays on Ti-6Al-4V in Hanks’ solution for biomedical applications. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2014.12.032] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Mohan L, Viswanathan S, Anandan C, Rajendran N. Corrosion behaviour of tetrahedral amorphous carbon (ta-C) filled titania nano tubes. RSC Adv 2015. [DOI: 10.1039/c5ra19625f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
3D images of nanotube (a) TNT and ta-C filled TNT samples at (b) 0.5 min, (c) 1 min, (d) 2 min, (e) 5 min and (f) 10 min.
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Mohan L, Anandan C, Rajendran N. Effect of plasma nitriding on structure and biocompatibility of self-organised TiO2 nanotubes on Ti–6Al–7Nb. RSC Adv 2015. [DOI: 10.1039/c5ra05818j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
TiO2 nanotubes formed by anodic oxidation of Ti–6Al–7Nb were nitrided in a nitrogen plasma.
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Shah KSV, Mohan L, Ethunandan M. Seeding following FNA/core biopsy—a search for evidence. Br J Oral Maxillofac Surg 2013. [DOI: 10.1016/j.bjoms.2013.05.060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Mohan L, Anandan C, Grips VKW. Investigation of electrochemical behavior of nitrogen implanted Ti-15Mo-3Nb-3Al alloy in Hank's solution. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2013; 24:623-33. [PMID: 23242767 DOI: 10.1007/s10856-012-4835-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2012] [Accepted: 12/03/2012] [Indexed: 05/21/2023]
Abstract
Titanium alloy Ti-15-3-3 (Beta-21S) was implanted with nitrogen ions by plasma immersion ion implantation at 700, 750 and 800 °C. Micro Raman and XPS results confirm the formation of nitrides after implantation. Corrosion current density (icorr) of the treated samples in simulated body fluid (Hank's solution) is higher than that of the substrate. Treated samples also exhibit lower charge transfer resistance and higher double layer capacitance as compared to that of substrate in electrochemical impedance spectroscopic studies. However, no corrosion related effects are observed after 28 days of immersion in SBF. EDS results show the presence of oxygen after corrosion studies. XPS spectra from the implanted samples show the presence of nitride and oxynitride on the surface and formation of oxide due to corrosion process.
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Murray RW, Jeyaraman R, Mohan L. Chemistry of dioxiranes. 4. Oxygen atom insertion into carbon-hydrogen bonds by dimethyldioxirane. J Am Chem Soc 2012; 108:2470-2. [PMID: 22175616 DOI: 10.1021/ja00269a069] [Citation(s) in RCA: 100] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Yuqi L, Shiwen W, Zongbin L, Xue Q, Yang L, Lei G, Yusheng Z, Yanhua L, Mohan L, Minxin G. A study on maternally inherited hypertension and mitochondrial DNA point mutation A4263G in a large Chinese family. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300867.227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Anand AC, Sashindran VK, Mohan L. Gastrointestinal problems at high altitude. TROPICAL GASTROENTEROLOGY : OFFICIAL JOURNAL OF THE DIGESTIVE DISEASES FOUNDATION 2006; 27:147-53. [PMID: 17542291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Gastrointestinal (GI) problems at high altitude are commonplace. The manifestations differ considerably in short-term visitors, long-term residents and native highlanders. Ethnic food habits and social norms also play a role in causing GI dysfuntion. Symptoms like nausea and vomiting are common manifestations of acute mountain sickness and are seen in 81.4% short-term visitors like mountaineers. Anorexia is almost universal and has a mutifactorial causation including effect of hormones like leptin and cholecystokinin and also due to hypoxia itself. Dyspepsia and flatulence are other common symptoms. Diarrhoea, often related to poor hygiene and sanitation is also frequently seen especially among the short-term visitors. Peptic ulceration and upper gastro-intestinal haemorrhage are reported to be common in native highlanders in the' Peruvian Andes (9.6/10000 population per year) and also from Ladakh in India. A hig h incidence o f gastriccarcinoma is also reported, especially from Bolivia (138.2 cases per 10000 population per year). Megacolon and sigmoid volvulus are common lower GI disorders at high altitude. The latter accounted for 79% of all intestinal obstructions at a Bolivian hospital. Thrombosis of the portosystemic vascultature and splenic hematomas has been reported from India. Malnutrition is multifactorial and mainly due to hypoxia. Fat malabsorption is probably significant only at altitudes > 5000m. Neonatal hyperbilirubinemia was found to be four times more common in babies born at high altitude in Colorado than at sea level. Gall stones disease is common in Peruvian highlands. A high seroprevalence of antibodies to H pylori (95%) has been found in Ladakh but its correlation to the prevalence of upper gastro-intestinal disease has not been proven.
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Mohan L, Lavania AK. Vasovagal syncope: an enigma. THE JOURNAL OF THE ASSOCIATION OF PHYSICIANS OF INDIA 2004; 52:301-4. [PMID: 15636332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
Syncope is a common clinical problem affecting 3.5% of the general population. About 40% of cases remain undiagnosed and 30% experience recurrent episodes. The article presents an update on the etiopathogenesis and theories of syncope. The pathophysiology of syncope remains elusive. Lewis introduced the term "vasovagal" implying therein that both vasodilatation and bradycardia were involved in the response. Individuals susceptible are unable to maintain adaptive neurocardiovascular responses to upright posture for prolonged periods of time. A complex hemodynamic response develops, with marked hypotension, bradycardia and a loss of consciousness. The "empty ventricle theory", first proposed by Sharpey - Schafer, widely accepted for several years, has been challenged and various other aspects of the vasovagal response have now been studied and implicated in contributing to the episode of unconsciousness. These include baroreflex dysfunction, neuro - endocrine responses, role of respiration and cerebrovascular dysfunction. An episode of syncope represents an episode of unconsciousness. Even a single episode of unconsciousness in the present day lifestyle is a source of distress to a patient, warranting a workup and diagnosis. The etiopathogenesis of the simple faint is complex and we may well be dealing with a constellation of responses and a more detailed classification than hitherto imagined.
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Kamalakannan A, Mohan L, Kavitha K, Harish S, Radjacommare R, Nakkeeran S, Parthiban VK, Karuppiah R, Angayarkanni T. Enhancing Resistance to Stem and Stolon Rot of Peppermint (Mentha piperita Lin.) Using Biocontrol Agents. ACTA ACUST UNITED AC 2003. [DOI: 10.1556/aphyt.38.2003.3-4.10] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Mohan L. Human Physiology. Med J Armed Forces India 2003. [DOI: 10.1016/s0377-1237(03)80030-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Kaplan IP, Mohan L. Use of information technology by a client-centered provider. A case study of Harvard Vanguard Medical Associates. HEALTHCARE LEADERSHIP & MANAGEMENT REPORT 2001; 9:1-7. [PMID: 11481882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
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Alex MP, Mohan L, Singh KK, Mukhiya RD. Erythema annulare centrifugum due to candida infection. Indian J Dermatol Venereol Leprol 1999; 65:283-284. [PMID: 20921688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
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Mohan L, Muse L, McInerney C. Managing smarter: a decision support system for mental health providers. J Behav Health Serv Res 1998; 25:446-55. [PMID: 9796166 DOI: 10.1007/bf02287514] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Financing of mental health care has changed radically, especially with managed care. Shrinking revenues have forced providers to look for creative ways in which to provide quality services at less expense. Delivery of quality services depends largely on the productive use of the provider's prime resource--the clinicians. Productivity was the focus of the PC-based decision support system developed for mental health providers in New York State. It enables administrators to track key indicators of productivity such as face-to-face time and non-face-to-face time against goals. Unmet goals can be pinpointed quickly, and clinicians' caseloads can be reviewed to determine the underlying causes. A key feature of the system is the conversion of raw data into actionable information to help in problem finding and problem solving. The system has been implemented in Ulster County, the pilot site for the project. The software can be customized easily to suit the data of other providers.
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Kumar P, Saxena R, Mohan L, Thacker AK, Mukhija RD. Peripheral nerve abscess in leprosy: report of twenty cases. INDIAN JOURNAL OF LEPROSY 1997; 69:143-7. [PMID: 9290965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
During the year 1994-1995, 20 of the 67 leprosy patients attending the dermatology department with any kind of nerve involvement were found to be having nerve abscess. These abscesses occurred in all types of leprosy (except the Indeterminate) and a variety of nerve trunks and cutaneous nerves. In none of the instances the abscess was associated with reaction. All the patients were surgically treated, without any steroid therapy. All cases showed significant improvement whenever there was nerve function deficit. Similarly, pain was relieved in all cases, when it was present.
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Rastogi S, Kumar P, Swarup K, Mohan L, Mukhija RD. Keratoacanthoma centrifugum marginatum. Indian J Dermatol Venereol Leprol 1995; 61:297-298. [PMID: 20952995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A case of 38-year-old male with multiple keratoacanthoma centrifugum marginatum is reported. Clinical presentation was in the form of multiple, firm, non-tender skin coloured nodules of variable sizes. Diagnosis was confirmed by the histopathological examination. The case is being reported because it is a rare variant of keratoacanthoma.
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Abstract
Four hundred vitiligo patients and 100 non-vitiliginous controls were studied to find out the prevalence of vitiligo in relatives of patients and controls. The difference was found to be statistically highly significant. The data reflected that there is some genetic mechanism involved in the etiology of vitiligo. Respective relatives of all forms of the disease in the vitiligo group showed a clear preponderance compared to controls. There was clustering of affected relatives in vitiligo cases compared to controls. The ratio of affected and unaffected siblings with unaffected parents or one parent affected, the ratio in the children of probands, the ratio in children of affected paternal and maternal grandparents of probands, suggest the polygenic nature of vitiligo.
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Mohan L, Bhatia PS, Nigam P, Singh KK, Mishra R, Mukhija RD. Naevus of Ota and Ito in a female. JOURNAL OF THE INDIAN MEDICAL ASSOCIATION 1992; 90:107. [PMID: 1645023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Mohan L, Bhatia PS, Nigam P, Mishra R, Singh KK, Mukhija RD. Peutz-Jeghers syndrome. JOURNAL OF THE INDIAN MEDICAL ASSOCIATION 1992; 90:108. [PMID: 1645025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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