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Verma SK, Singh N, Jha AK, Tigga C, Noorani MK, Ekram S, Gupta V. Prevalence of Periodontal Disease among Patients Reporting to Tertiary Care Hospital in Ranchi. J Pharm Bioallied Sci 2024; 16:S838-S840. [PMID: 38595525 PMCID: PMC11001122 DOI: 10.4103/jpbs.jpbs_1051_23] [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: 10/14/2023] [Revised: 10/21/2023] [Accepted: 10/23/2023] [Indexed: 04/11/2024] Open
Abstract
Background Despite a huge number of advancements in the medical field, periodontitis still remains one of the most prevalent oral diseases worldwide. Aim Thus, the primary aim of our study was to evaluate the prevalence of periodontal diseases in patients reporting to the tertiary healthcare setup in Ranchi. Materials and Methods Based on inclusion criteria, subjects aged 18-60 years were selected and a per forma was filled by the observer. The prevalence of periodontal disease was measured using the community periodontal index, simplified oral hygiene index, and stage of periodontitis. Results Descriptive variables were assessed using frequency, percentage, mean, and standard deviations, while the categorical analysis was performed using the Chi-square tests. Conclusion General awareness about periodontal health and regular dental visits should be given utmost importance among the rural populations of every developing country.
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Affiliation(s)
- Santosh K. Verma
- Department of Periodontology and Oral Implantology, Dental Institute, Rajendra Institute of Medical Sciences, Ranchi, Jharkhand, India
| | - Neha Singh
- Department of Periodontology and Oral Implantology, Dental Institute, Rajendra Institute of Medical Sciences, Ranchi, Jharkhand, India
| | - Awanindra K. Jha
- Department of Orthodontic and Dentofacial Orthopedic, Dental Institute, Rajendra Institute of Medical Sciences, Ranchi, Jharkhand, India
| | - Chandmani Tigga
- Department of Oral and Maxillofacial Surgery, Dental Institute, Rajendra Institute of Medical Sciences, Ranchi, Jharkhand, India
| | - Mohammad K. Noorani
- Department of Prosthodontics and Crown and Bridge and Oral Implantolgy, Patna, Bihar, India
| | - Subia Ekram
- Department of Oral and Maxillofacial Surgery, Dental Institute, Rajendra Institute of Medical Sciences, Ranchi, Jharkhand, India
| | - Vivek Gupta
- Department of Periodontology and Oral Implantology, Dental Institute, Rajendra Institute of Medical Sciences, Ranchi, Jharkhand, India
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Prakash O, Verma SK, Jha AK, Mallick S, Ekram S, Soni M. Surgery-First Approach for Dentofacial Deformity: A Systematic Review. Cureus 2023; 15:e35085. [PMID: 36938263 PMCID: PMC10023129 DOI: 10.7759/cureus.35085] [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: 11/10/2022] [Accepted: 02/08/2023] [Indexed: 02/19/2023] Open
Abstract
This review is based on the surgery-first approach for dentofacial deformity. This review has critically highlighted various promising aspects and factors associated with dentofacial deformity and can be viewed as valuable research work. In addition, this review highlights a systematic manner of surgery that can reduce the possible duration of treatment. The main findings of the review have established that the appropriate approaches to surgery can be beneficial for patients of any age group. The surgery-first approach is mainly utilized for tissue transfer as well as oral cancer as the first-line treatment. This critical review has successfully evaluated the limitations and advantageous traits of the specific surgery approach that has been outlined in this context. It has established the surgery approach as an effective measurement to reduce the time taken for treatment without compromising the patient's health. In the final phase of this review, the accuracy and appropriateness of this surgery-first approach have been effectively demonstrated.
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Affiliation(s)
- Om Prakash
- Department of Oral and Maxillofacial Surgery, Dental College, Rajendra Institute of Medical Sciences, Ranchi, IND
| | - Santosh K Verma
- Department of Periodontology, Dental College, Rajendra Institute of Medical Sciences, Ranchi, IND
| | - Awanindra K Jha
- Department of Orthodontic and Dentofacial Orthopedic, Dental College, Rajendra institute of medical sciences, Ranchi, IND
| | - Saurabh Mallick
- Department of Oral and Maxillofacial Surgery, Mallick Dental and Maxillofacial Center, Ranchi, IND
| | - Subia Ekram
- Department of Oral and Maxillofacial Surgery, Dental College, Rajendra Institute of Medical Sciences, Ranchi, IND
| | - Mukesh Soni
- Department of Oral and Maxillofacial Surgery, Northern Railway Central Hospital, New Delhi, IND
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Verma SK, Huang J, Hutchinson HG, Estevez I, Kuang K, Reynolds SL, Schneeweiss S. Statin Use and Severe Acute Liver Injury Among Patients with Elevated Alanine Aminotransferase. Clin Epidemiol 2022; 14:1535-1545. [DOI: 10.2147/clep.s385712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 11/30/2022] [Indexed: 12/15/2022] Open
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Dubey K, Usman K, Chaudhary SC, Sawlani KK, Verma SK, Ali W. Association of Serum Ferritin Levels with Microalbuminuria, Glycemic Control and Dyslipidemia. J Assoc Physicians India 2022; 70:11-12. [PMID: 35443372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
UNLABELLED As diabetes is on the rise worldwide, early screening and detection of its complications is crucial. The first clinical sign of renal dysfunction in diabetes is microalbuminuria. Ferritin may have a possible role in the development and prediction of microalbuminuria and other complications of diabetes by 3 possible mechanisms- 1) it is a marker of elevated body iron stores. 2) acts as acute-phase reactant and elevation reflects inflammation 3) Delayed clearance of glycosylated ferritin in patients with diabetes causes raised ferritin levels. In this premise, we studied the association between serum ferritin levels and microalbuminuria, glycemic control and dyslipidemia in type 2 diabetic patients. MATERIAL A cross-sectional study was carried out at a tertiary hospital in northern India involving 152 patients of type 2 diabetes mellitus. Anthropometric measurements (weight, height), sample collection for basic laboratory parameters including complete blood count, kidney function tests, liver function tests, HbA1c, lipid profile, serum iron and ferritin levels, urinary albumin- creatinine ratio was done. A fundus examination was performed. Results were analyzed using descriptive statistics and making comparisons among various groups. Categorical data were summarized as proportions or percentages while discrete as mean. Chi-square test was used for testing associations. OBSERVATION Mean serum ferritin levels were significantly higher in patients having microalbuminuria as against patients having normal urinary albumin- creatinine ratio (539 vs 292, p-value- 0.04). Patients having poor glycemic control (HbA1c > 7) had higher ferritin levels (p-value- 0.024). There was a near-significant association (p-value-0.06) between serum ferritin and triglyceride levels. More cases with raised serum ferritin had higher triglyceride levels. Patients having microalbuminuria had a higher prevalence of diabetic retinopathy (p-value- 0.003) and higher triglyceride levels (p-value- 0.041). CONCLUSION Ferritin can act as a marker of diabetic nephropathy, poor glycemic control and dyslipidemia in type 2 diabetic patients. Our study, therefore, indicates that programs to prevent complications of diabetes would be more effective by placing greater emphasis on patients having higher ferritin levels.
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Affiliation(s)
- K Dubey
- King George's Medical University, Lucknow
| | - K Usman
- King George's Medical University, Lucknow
| | | | | | - S K Verma
- King George's Medical University, Lucknow
| | - W Ali
- King George's Medical University, Lucknow
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Verma SK, Dev Kumar B, Chaurasia A, Dubey D. Effectiveness of mouthwash against viruses: 2020 perspective. A systematic review. Minerva Dent Oral Sci 2021; 70:206-213. [PMID: 34842407 DOI: 10.23736/s2724-6329.21.04418-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
INTRODUCTION Antiseptic mouthwash is widely recommended to treat various oral diseases as well as to improve oral health. Most of the dental procedures lead to the generation of aerosols. These aerosols have a high potential to transmit disease. Preprocedural oral rinse with antimicrobial agents in the form of mouthwashes reduces the bacterial and viral load many folds. The purpose of this review was to summarize the effectiveness of mouthwash against viruses affecting human beings. EVIDENCE ACQUISITION Search engines like PubMed, Google Scholar, and others were used to search the electronic database. Articles were identified in which the effectiveness of antiseptic mouth rinse against the virus was tested. A comprehensive search strategy was designed to select the articles and then independently screened for eligibility. EVIDENCE SYNTHESIS A total of 9624 articles out of the 13 titles met the eligibility criteria. The selected papers were included in the present manuscript according to their relevance to the topic. Authors searched the most used chemicals as mouthwashes but records of three types of mouthwash tested against various types of viruses i.e. chlorhexidine gluconate, Povidone-iodine and essential oil containing mouthwash (Listerine) were found. CONCLUSIONS Povidone-iodine mouth rinse is effective in reducing viral load either in-vitro or in-vivo conditions. Chlorhexidine gluconate mouthwash and essential oils have shown its effectiveness in a few studies. Insufficient evidence is available to support the claim that oral antiseptics can reduce the risk of developing viral loads in humans or the rate of progression of diseases caused by viruses.
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Affiliation(s)
- Santosh K Verma
- Department of Periodontology and Oral Implantology, Dental Institute, RIMS, Ranchi, India -
| | - Barun Dev Kumar
- Department of Orthodontics, Dental Institute, RIMS, Ranchi, India
| | - Akhilanand Chaurasia
- Department of Oral Medicine and Radiology, King George Medical University, Lucknow, India
| | - Deepyanti Dubey
- Department of Conservative Dentistry and Endodontics, Hazaribag College of Dental Sciences and Hospital, Hazaribag, India
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Verma SK, Thirumurugan A, Panda PK, Patel P, Nandi A, Jha E, Prabakaran K, Udayabhaskar R, Mangalaraja RV, Mishra YK, Akbari-Fakhrabadi A, Morel MJ, Suar M, Ahuja R. Altered electrochemical properties of iron oxide nanoparticles by carbon enhance molecular biocompatibility through discrepant atomic interaction. Mater Today Bio 2021; 12:100131. [PMID: 34622194 PMCID: PMC8479829 DOI: 10.1016/j.mtbio.2021.100131] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/23/2021] [Accepted: 08/31/2021] [Indexed: 12/23/2022] Open
Abstract
Recent advancement in nanotechnology seeks exploration of new techniques for improvement in the molecular, chemical, and biological properties of nanoparticles. In this study, carbon modification of octahedral-shaped magnetic nanoparticles (MNPs) was done using two-step chemical processes with sucrose as a carbon source for improvement in their electrochemical application and higher molecular biocompatibility. X-ray diffraction analysis and electron microscopy confirmed the alteration in single-phase octahedral morphology and carbon attachment in Fe3O4 structure. The magnetization saturation and BET surface area for Fe3O4, Fe3O4/C, and α-Fe2O3/C were measured as 90, 86, and 27 emu/g and 16, 56, and 89 m2/g with an average pore size less than 7 nm. Cyclic voltammogram and galvanostatic charge/discharge studies showed the highest specific capacitance of carbon-modified Fe3O4 and α-Fe2O3 as 213 F/g and 192 F/g. The in vivo biological effect of altered physicochemical properties of Fe3O4 and α-Fe2O3 was assessed at the cellular and molecular level with embryonic zebrafish. Mechanistic in vivo toxicity analysis showed a reduction in oxidative stress in carbon-modified α-Fe2O3 exposed zebrafish embryos compared to Fe3O4 due to despaired influential atomic interaction with sod1 protein along with significant less morphological abnormalities and apoptosis. The study provided insight into improving the characteristic of MNPs for electrochemical application and higher biological biocompatibility.
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Affiliation(s)
- S K Verma
- School of Biotechnology, KIIT University, Bhubaneswar, 751024, India
- Condensed Matter Theory Group, Materials Theory Division, Department of Physics and Astronomy, Uppsala University, Box 516, SE-75120, Uppsala, Sweden
| | - A Thirumurugan
- Instituto de Investigaciónes Científicas y Tecnológicas (IDICTEC), Universidad de Atacama, Copayapu 485, Copiapó, Chile
| | - P K Panda
- Condensed Matter Theory Group, Materials Theory Division, Department of Physics and Astronomy, Uppsala University, Box 516, SE-75120, Uppsala, Sweden
| | - P Patel
- School of Biotechnology, KIIT University, Bhubaneswar, 751024, India
| | - A Nandi
- School of Biotechnology, KIIT University, Bhubaneswar, 751024, India
| | - E Jha
- School of Biotechnology, KIIT University, Bhubaneswar, 751024, India
| | - K Prabakaran
- SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamil Nadu, 603203, India
| | - R Udayabhaskar
- Instituto de Investigaciónes Científicas y Tecnológicas (IDICTEC), Universidad de Atacama, Copayapu 485, Copiapó, Chile
| | - R V Mangalaraja
- Advanced Ceramics and Nanotechnology Laboratory, Department of Materials Engineering, Faculty of Engineering, University of Concepción, Concepción, 4070409, Chile
- Technological Development Unit (UDT), University of Concepcion, Coronel Industrial Park, Coronel, Chile
| | - Y K Mishra
- Smart Materials, NanoSYD, Mads Clausen Institute, NanoSYD, University of Southern Denmark, Alsion 2, Denmark
| | - A Akbari-Fakhrabadi
- Advanced Materials Laboratory, Department of Mechanical Engineering, University of Chile, Santiago, Chile
| | - M J Morel
- Instituto de Investigaciónes Científicas y Tecnológicas (IDICTEC), Universidad de Atacama, Copayapu 485, Copiapó, Chile
| | - M Suar
- School of Biotechnology, KIIT University, Bhubaneswar, 751024, India
| | - R Ahuja
- Condensed Matter Theory Group, Materials Theory Division, Department of Physics and Astronomy, Uppsala University, Box 516, SE-75120, Uppsala, Sweden
- Department of Physics, Indian Institute of Technology Ropar, Rupnagar 140001, Punjab, India
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Lindsay DS, Verma SK, Dubey JP, Scott D, von Dohlen AR. GAMOGONY OF SARCOCYSTIS STRIXI IN MAMMALIAN CELL CULTURES. J Parasitol 2021; 107:562-565. [PMID: 34283238 DOI: 10.1645/20-63] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
We are interested in the disease ecology of Sarcocystis species that infect birds of prey as definitive and intermediate hosts. The present study was done to test our hypothesis that a laboratory model can be developed for sarcocystis infection in mammals using gamma interferon gene knockout (KO) mice as a source of Sarcocystis strixi bradyzoites and mammalian cell cultures as a source of sporulated S. strixi oocysts. Sporocysts of S. strixi from a naturally infected barred owl (Strix varia) were fed to KO mice to produce sarcocysts, and the enclosed bradyzoites were obtained by acid-pepsin digestion of abdominal and thigh muscles. Bradyzoites, metrocytes, and an unusual spherical stage were seen in digest before the inoculation of host cells. The spherical stages stained dark with Giemsa stain, but no nucleus was observed, and they were seen free and associated with the concave portion of some bradyzoites. Examination of infected cell cultures demonstrated that macrogamonts and microgamonts were present at 24 hr post-inoculation. Since sporulated oocysts were not observed, we had to reject our current hypothesis.
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Affiliation(s)
- David S Lindsay
- Department of Biomedical Sciences and Pathobiology, Virginia Maryland College of Veterinary Medicine, Faculty of Health Sciences, 205 Duck Pond Drive, Virginia Tech, Blacksburg, Virginia 24061
| | - S K Verma
- United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, 10300 Baltimore Avenue, Bldg. 1040, Beltsville, Maryland 20705.,Present address: Public Health and Environmental Laboratories, New Jersey Department of Health, Ewing, New Jersey 08628
| | - J P Dubey
- United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, 10300 Baltimore Avenue, Bldg. 1040, Beltsville, Maryland 20705
| | - David Scott
- Carolina Raptor Center, 6000 Sample Road, Huntersville, North Carolina 28078
| | - Alexa Rosypal von Dohlen
- Department of Natural Sciences and Mathematics, Johnson C. Smith University, 100 Beatties Ford Rd., Charlotte, North Carolina 28216
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Verma SK, Sahu PK, Kumar K, Pal G, Gond SK, Kharwar RN, White JF. Endophyte roles in nutrient acquisition, root system architecture development and oxidative stress tolerance. J Appl Microbiol 2021; 131:2161-2177. [PMID: 33893707 DOI: 10.1111/jam.15111] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [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: 01/28/2021] [Revised: 04/06/2021] [Accepted: 04/16/2021] [Indexed: 01/01/2023]
Abstract
Plants associate with communities of microbes (bacteria and fungi) that play critical roles in plant development, nutrient acquisition and oxidative stress tolerance. The major share of plant microbiota is endophytes which inhabit plant tissues and help them in various capacities. In this article, we have reviewed what is presently known with regard to how endophytic microbes interact with plants to modulate root development, branching, root hair formation and their implications in overall plant development. Endophytic microbes link the interactions of plants, rhizospheric microbes and soil to promote nutrient solubilization and further vectoring these nutrients to the plant roots making the soil-plant-microbe continuum. Further, plant roots internalize microbes and oxidatively extract nutrients from microbes in the rhizophagy cycle. The oxidative interactions between endophytes and plants result in the acquisition of nutrients by plants and are also instrumental in oxidative stress tolerance of plants. It is evident that plants actively cultivate microbes internally, on surfaces and in soils to acquire nutrients, modulate development and improve health. Understanding this continuum could be of greater significance in connecting endophytes with the hidden half of the plant that can also be harnessed in applied terms to enhance nutrient acquisition through the development of favourable root system architecture for sustainable production under stress conditions.
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Affiliation(s)
- S K Verma
- Centre of Advanced Study in Botany, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - P K Sahu
- National Bureau of Agriculturally Important Microorganism, Mau, Uttar Pradesh, India
| | - K Kumar
- Centre of Advanced Study in Botany, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - G Pal
- Centre of Advanced Study in Botany, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - S K Gond
- Botany Section, MMV, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - R N Kharwar
- Centre of Advanced Study in Botany, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - J F White
- Department of Plant Biology, Rutgers University, New Brunswick, NJ, USA
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Verma R, Verma SK, Verma V, Verma S, Vaishnav Y, Jena V, Kumar A, Rakesh KP. Catalytic pyrolysis of ulva lactuca macroalgae: Effects of mono and bimetallic catalysts and reaction parameters on bio-oil up-gradation. Bioresour Technol 2021; 324:124594. [PMID: 33453518 DOI: 10.1016/j.biortech.2020.124594] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 12/16/2020] [Accepted: 12/17/2020] [Indexed: 06/12/2023]
Abstract
Catalytic pyrolysis of ulva lactuca (UL) macroalgae was studied over a series of ZrO2 supported metal such as Co, Ni and Co-Ni metal catalysts at temperature range of 300-500 °C. Highest bio-oil yield (47.8 wt%) was found with Co-Ni/ZrO2 (10 wt%) catalyst while non-catalytic yielded 42.5 wt% bio-oil. Moreover with increases the metal amount to 15 wt%, the bio-oil yield slightly increased (49.2 wt%). The bio-oil quality significantly improved with using the catalysts compared to the non-catalytic pyrolysis. Catalytic pyrolysis also revealed that introducing Co-Ni into the ZrO2 could result in higher surface area and which increased active sites. Catalytic bio-oils were consisted of mainly long chain hydrocarbon in the range of C6-C16. Moreover, the catalytic bio-oils were showed the higher 'high heating value' (HHV) 38.1 MJ/kg as compare to non-catalytic bio-oils (29.4 MJ/kg). Catalysts have been showed excellent recyclability on bio-oil yield and compounds selectivity.
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Affiliation(s)
- Rameshwari Verma
- School of Chemistry and Chemical Engineering, Yulin University, Yulin 719000, Shaanxi, PR China; Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization, Yulin University, Yulin 719000, Shaanxi, PR China
| | - Santosh K Verma
- School of Chemistry and Chemical Engineering, Yulin University, Yulin 719000, Shaanxi, PR China; Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization, Yulin University, Yulin 719000, Shaanxi, PR China.
| | - Vandana Verma
- School of Studies in Bio-Technology, Pt. Ravishankar Shukla University Raipur-492010, Chhattisgarh, India
| | - Shekhar Verma
- University College of Pharmacy Raipur, Pt. DeendayalUpadhyay Memorial Health, Sciences and Aayush University of Chhattisgarh Raipur, 492010 Chhattisgarh, India
| | - Yogesh Vaishnav
- Shri Shankaracharya Technical Campus, Shri Shankaracharya Group of Institutions, Bhilai 491001, Chhattisgarh, India
| | - Vinod Jena
- Department of Chemistry, Government Nagarjuna Post Graduate College of Science, Raipur 492010, Chhattisgarh, India
| | - Amit Kumar
- Department of Chemistry, National Institute of Technology, Jamshedpur 831014, India
| | - K P Rakesh
- Department of Chemistry, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430073, PR China
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Bajpai J, Majumdar A, Satwik R, Rohatgi N, Jain V, Gupta D, Agarwal R, Mittal S, Verma SK, Parikh PM, Aggarwal S. Practical consensus recommendations on fertility preservation in patients with breast cancer. South Asian J Cancer 2020; 7:110-114. [PMID: 29721475 PMCID: PMC5909286 DOI: 10.4103/sajc.sajc_113_18] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Young women diagnosed with cancer today have a greater chance of long-term survival than ever before. Successful survivorship for this group of patients includes maintaining a high quality of life after a cancer diagnosis and treatment; however, lifesaving treatments such as chemotherapy, radiation, and surgery can impact survivors by impairing reproductive and endocrine health. Expert oncologists along with reproductive medicine specialists discuss fertility preservation options in this chapter since fertility preservation is becoming a priority for young women with breast cancer. This expert group used data from published literature, practical experience and opinion of a large group of academic oncologists to arrive at these practical consensus recommendations for the benefit of community oncologists.
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Affiliation(s)
- Jyoti Bajpai
- Department of Medical Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - A Majumdar
- Center of IVF and Human Reproduction, Sir Gangaram Hospital, New Delhi, India
| | - R Satwik
- Center of IVF and Human Reproduction, Sir Gangaram Hospital, New Delhi, India
| | - N Rohatgi
- Department of Medical Oncology, Max Saket Hospital, New Delhi, India
| | - V Jain
- Department of Gynaecology and Obstretics, Ludhiana Medicity Hospital, Ludhiana, Punjab, India
| | - D Gupta
- Department of Medical Oncology, Dharamshila Cancer Hospital, New Delhi, India
| | - R Agarwal
- Department of Surgical Oncology, Medanta Hospital, Gurugram, Haryana, India
| | - S Mittal
- Department of Medical Oncology, Action Balajee Cancer Center, New Delhi, India
| | - S K Verma
- Department of Medical Oncology, Jolly Grant Himalayan Institute, Dehradoon, Uttarakhand, India
| | - P M Parikh
- Department of Oncology, Shalby Cancer and Research Institutes, Mumbai, Maharashtra, India
| | - S Aggarwal
- Department of Medical Oncology, Sir Gangaram Hospital, New Delhi, India
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Tiwari S, Kumar V, Randhawa S, Verma SK. Preparation and characterization of extracellular vesicles. Am J Reprod Immunol 2020; 85:e13367. [PMID: 33118232 DOI: 10.1111/aji.13367] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 10/14/2020] [Accepted: 10/16/2020] [Indexed: 12/14/2022] Open
Abstract
Extracellular vesicles (EVs) are heterogeneous membranous vesicles secreted by every cell type and offer significant potential in therapy and diagnostics. Differential ultracentrifugation is the gold standard for EV isolation, although other techniques including, polyethylene glycol (PEG) precipitation, immunoprecipitation, size exclusion chromatography, and immuno-isolation approaches are common. Purified EVs can be characterized based on their physical characteristics, biochemical composition, or cell of origin. For size and concentration measurement, nanoparticle tracking analysis (NTA), dynamic light scattering (DLS), and electron microscopy are commonly employed methods. Biochemical analyses of EVs are typically performed using flow cytometry, immunoblotting, or proteomic investigation. Based on tissue of origin, EVs have specific markers that can be used to isolate and purify specific cell-associated EVs using an affinity selection approach. Despite existence of several methods for isolation and characterization, major limitations associated with each method hinder the progress of the field. Evolving concepts in EV biology possess great promise for better isolation and characterization leading to a better insight of biological function and have immense clinical implications. In this review, we discuss recent advancements in EV isolation and characterization approaches.
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Affiliation(s)
- Swasti Tiwari
- Department of Molecular Medicine & Biotechnology, Sanjay Gandhi PGI, Lucknow, India
| | - Vinod Kumar
- Department of Molecular Medicine & Biotechnology, Sanjay Gandhi PGI, Lucknow, India
| | | | - Santosh K Verma
- Department of Molecular Medicine & Biotechnology, Sanjay Gandhi PGI, Lucknow, India
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Verma SK, Ghosh KK, Verma R, Verma S. Influence of cationic surfactants and inorganic salts on the enzyme kinetic activity of
Mucor javanicus
lipase. INT J CHEM KINET 2020. [DOI: 10.1002/kin.21444] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Santosh K. Verma
- School of Chemistry and Chemical Engineering Yulin University Yulin Shaanxi People's Republic of China
- Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization Yulin University Yulin Shaanxi People's Republic of China
- School of Studies in Chemistry Pt. Ravishankar Shukla University Raipur Chhattisgarh India
| | - Kallol K. Ghosh
- School of Studies in Chemistry Pt. Ravishankar Shukla University Raipur Chhattisgarh India
| | - Rameshwari Verma
- School of Chemistry and Chemical Engineering Yulin University Yulin Shaanxi People's Republic of China
- Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization Yulin University Yulin Shaanxi People's Republic of China
- School of Studies in Chemistry Pt. Ravishankar Shukla University Raipur Chhattisgarh India
| | - Shekhar Verma
- University College of Pharmacy Raipur Pt. Deendayal Upadhyay Memorial Health Sciences and Aayush University of Chhattisgarh Raipur India
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Rajagopal TV, Kant S, Verma SK, Kushwaha RAS, Kumar S, Garg R, Srivastava A, Bajaj DK. Aspergillus sensitization in bronchial asthma: A separate phenotype. Allergy Asthma Proc 2020; 41:e26-e32. [PMID: 31888791 DOI: 10.2500/aap.2020.41.190008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Background: Bronchial asthma is one of the common chronic respiratory illnesses worldwide, with a global disease burden that affects approximately 300 million individuals. It affects 5-10% of the population in developed countries. India constitutes approximately one-tenth of the global disease burden, where an estimated 7 million children are affected by this illness. Airway hyperresponsiveness or bronchial hyperreactivity in asthma is an exaggerated response to numerous exogenous and endogenous stimuli. In India, the most important endogenous stimuli is considered to be fungal antigens from the genus, Aspergillus. Positive skin reactions to Aspergillus fumigatus among individuals with atopic asthma is 10 to 20%; however, a causal relationship is yet to be established. A separate entity, termed "severe asthma with fungal sensitivity," is often used to describe milder allergic reactions to fungal aeroallergens that has fungal sensitization as the starting point of pathogenesis than allergic bronchopulmonary aspergillosis. Methods: A total of 57 patients with bronchial asthma were prospectively enrolled and evaluated for Aspergillus sensitization and its impact on asthma control. Results: Symptoms were well controlled in a majority of patients (57.89%) and partly controlled in 14.04%. Uncontrolled symptoms were observed in only 28.07% of patients. The proportion of patients with uncontrolled symptoms was higher among patients who were sensitized (45.00%) compared with patients who were not sensitized (18.92%). The proportion of patients with well-controlled symptoms was higher in individuals who were not sensitized compared with individuals who were sensitized (62.16% versus 50.00%). Conclusion: The severity of asthma was associated with fungal sensitization, with sensitization to Aspergillus as a part of the pathogenesis. Aspergillus sensitization is significantly associated with bronchiectasis, even in the absence of clinical features.
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Prakash B, Verma SK, Rama Rao SV, Raju MVLN, Paul SS, Kannan A, Mishra S, Singh V, Sankhyan V. Feeding status of free-range scavenging chickens in different agro-climatic regions of India. Br Poult Sci 2019; 61:26-32. [PMID: 31573327 DOI: 10.1080/00071668.2019.1671956] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
1. The aim of this study was to determine the nutritional status of backyard chickens reared under 4 different agro-climatic conditions (tropical, humid subtropical, cool-temperate and semi-arid) of India during different seasons of the year and to compare their nutritional status with those reared under confined feeding system (CFS). In each season, 15 adult and 15 grower chickens were slaughtered for collecting content of crop and gizzard to assess the nutritional status from different agro-climatic conditions.2. The dry matter content of crop and gizzard was higher (P < 0.01) in chickens reared under backyard conditions compared to those reared under CFS.3. Higher (P < 0.01) crop and gizzard contents were recorded during winter compared to the rainy season. The proportion of grains in the crop during summer and winter season was higher compared to rainy season. Further, there were more insects present in the crop during the rainy season and winter compared to summer.4. The proportion of insects was higher in chickens reared in humid, subtropical and cool temperate regions compared to semi-arid conditions. The consumption of grasses was higher in cool-temperate regions as compared to those reared under other areas.5. Crude protein (CP), Ca, P and gross energy (GE) content of the crop were higher in chickens reared under CFS compared to those reared in backyard systems and CP in the crop contents was lower in backyard chickens reared in humid subtropical and semi-arid regions compared to other areas. Similarly, lower (P < 0.01) Ca levels were seen in crop and gizzard contents from birds reared in semi-arid Rajasthan, and P and GE were lower in tropical wet and dry Telangana (TWT) compared to the chickens reared in the backyard conditions in other regions.6. Based on the results, the nutrient intake for birds utilising the scavenging feed resource base (SFRB) in the TWT region was below the requirements of backyard chickens from the other regions selected in the present study. GE and CP were critically deficient in the SFRB of the TWT region. Therefore, evolving location-specific supplementary diets using locally available feed resources to meet nutrient requirement of backyard chickens is required for optimising production potential.
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Affiliation(s)
- B Prakash
- Nutrition Laboratory, ICAR-Directorate of Poultry Research, Hyderabad, India
| | - S K Verma
- Animal Nutrition, ICAR - Central Institute for Research on Cattle, Meerut Cantt, Uttar Pradesh, India
| | - S V Rama Rao
- Nutrition Laboratory, ICAR-Directorate of Poultry Research, Hyderabad, India
| | - M V L N Raju
- Nutrition Laboratory, ICAR-Directorate of Poultry Research, Hyderabad, India
| | - S S Paul
- Nutrition Laboratory, ICAR-Directorate of Poultry Research, Hyderabad, India
| | - A Kannan
- Nutrition Laboratory, ICAR-Directorate of Poultry Research, Hyderabad, India
| | - S Mishra
- Department of Animal Production, Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan, India
| | - V Singh
- Animal Science Division, ICAR Research complex for NEH region Tripura Centre, Lembucherra, Agartala, India
| | - V Sankhyan
- Department of Animal Genetics and Breeding, GCN Veterinary College Palampur, Himachal Pradesh, India
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Shukla S, Husain N, Anand N, Kant S, Garg R, Verma SK, Kumar S, Prakash V. Thyroid Transcription Factor-1 Expression in Adenocarcinoma Lung and Its Association with Histomorphological Features. Indian J Med Paediatr Oncol 2019. [DOI: 10.4103/ijmpo.ijmpo_199_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Abstract
Objectives: Thyroid transcription factor-1 (TTF-1) expression is frequently associated with adenocarcinoma lung. This study was undertaken with the objectives to assess the expression of TTF-1 in non-small cell lung carcinoma (NSCLC) with adenocarcinoma phenotype and to evaluate the TTF-1 expression with clinicopathological and histomorphological features. Materials and Methods: This was a tertiary care hospital-based case series that included 250 cases of NSCLC. TTF-1 immunostaining along with a basic panel of immunohistochemistry markers was performed. The histomorphological analysis was done to compare the morphological features of TTF-1-positive versus TTF-1-negative cases. Results: TTF-1 was positive in 144 cases (57.6%), while 106 cases were negative for TTF-1. The M: F ratio in the TTF-1-positive group was 1:2, and the mean age of the cases that expressed TTF-1 was 48.5 years. The most common pattern in the TTF-1-positive group was loose clusters or singly dispersed cells (77.78%), followed by the acinar (54.86%) and solid pattern (42.36%). In the TTF-1-negative group, 86.79% of cases had singly dispersed cells or loose cohesive clusters, followed by a solid pattern in 50.94% cases. Conclusion: TTF-1 is a useful and reliable marker for pulmonary adenocarcinoma. TTF-1 expression does not have any association with the patterns and degree of differentiation evident in the tumor.
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Affiliation(s)
- Saumya Shukla
- Department of Pathology, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Nuzhat Husain
- Department of Pathology, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Nidhi Anand
- Department of Pathology, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Surya Kant
- Department of Respiratory Medicine, King George’s Medical University, Lucknow, Uttar Pradesh, India
| | - Rajiv Garg
- Department of Respiratory Medicine, King George’s Medical University, Lucknow, Uttar Pradesh, India
| | - SK Verma
- Department of Respiratory Medicine, King George’s Medical University, Lucknow, Uttar Pradesh, India
| | - Santosh Kumar
- Department of Respiratory Medicine, King George’s Medical University, Lucknow, Uttar Pradesh, India
| | - Ved Prakash
- Department of Respiratory Medicine, King George’s Medical University, Lucknow, Uttar Pradesh, India
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16
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Jacobs JV, Hettinger LJ, Huang YH, Jeffries S, Lesch MF, Simmons LA, Verma SK, Willetts JL. Employee acceptance of wearable technology in the workplace. Appl Ergon 2019; 78:148-156. [PMID: 31046946 DOI: 10.1016/j.apergo.2019.03.003] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [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: 11/05/2018] [Revised: 01/08/2019] [Accepted: 03/04/2019] [Indexed: 06/09/2023]
Abstract
Wearable technology has many industrial applications. Optimal use adherence and outcomes largely depend on employee acceptance of the technology. This study determined factors that predict employee acceptance of wearables. An online survey of 1273 employed adults asked about demographics, job and organizational characteristics, experience with and beliefs about wearables, and willingness to use wearables. Use cases focused on workplace safety elicited the highest acceptance. An employee's performance expectancy and their organizational safety climate were common predictors of acceptance across use cases. Positive past experiences coincided with involving employees in choosing the device and adequately informing them about data use. Organizations intending to implement wearable technology should (a) focus its use on improving workplace safety, (b) advance a positive safety climate, (c) ensure sufficient evidence to support employees' beliefs that the wearable will meet its objective, and (d) involve and inform employees in the process of selecting and implementing wearable technology.
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Affiliation(s)
- Jesse V Jacobs
- Liberty Mutual Insurance, 157 Berkeley St, Boston, MA, USA; Rehabilitation and Movement Science, University of Vermont, 106 Carrigan Dr, Burlington, VT, USA.
| | | | - Yueng-Hsiang Huang
- Liberty Mutual Insurance, 157 Berkeley St, Boston, MA, USA; Oregon Institute of Occupational Health Science, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd, Portland, OR, USA
| | - Susan Jeffries
- Liberty Mutual Insurance, 157 Berkeley St, Boston, MA, USA
| | - Mary F Lesch
- Liberty Mutual Insurance, 157 Berkeley St, Boston, MA, USA
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17
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McLarty S, Friend KE, Chadha N, Verma SK, Sawicki C, Johnson KA. Effect of secure clinical messaging on chemotherapy adherence. J Clin Oncol 2019. [DOI: 10.1200/jco.2019.37.15_suppl.e18542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e18542 Background: Oncologists offer essential clinical information to patients face-to-face or by phone. Today, patients commonly prefer digital communication. To test the effectiveness of this in patients, we deployed proprietary secure messaging (SM) to communicate clinical messages to patients regarding prescribed oral chemotherapy in an effort to improve adherence. Methods: Chronic myelogenous leukemia (CML) patients receiving a tyrosine kinase inhibitor (TKI) were evaluated as two groups: a test group of patients starting therapy between Jan - Jun 2018 who received SM within 45 days therapy start who received SM refill reminders, adherence, condition management, laboratory testing reminders every 30 days, and information regarding side effects, versus a control group that included propensity matched patients initiating therapy between Jan - June 2017 and who received only non-clinical text message refill reminders within 45 days of therapy start. Adherence was compared 6 months after the initial prescription. Primary outcomes were medication possession ratio (MPR) (total day supply/ [(last fill date+last fill day supply)-first fill date]), number of prescriptions filled, % of patients optimally adherent (MPR ≥ 85%), and rate of discontinuation after first fill. The secondary outcome was days of therapy. A t-test evaluated MPR and length of therapy; logistic regression compared discontinuation after first fill and % optimally adherent. Results: 478 CML patients opted into SM and 478 where in the control group. MPR improved 1.6% absolute points (93.20 control v 94.80 test, p = 0.04); no change was seen in number of prescriptions filled (5.04 control v 5.17 test, p = 0.19). More patients receiving SM were optimally adherent (83.05 control v 88.31 test, p = 0.03); discontinuation after first fill was unchanged (6.90 control v 6.49 test, p = 0.79), as were days of therapy (156.51 control v 159.22 test), p = 0.35). Conclusions: Patients initiated on TKI therapy with receiving clinical SM had significantly higher adherence than the control group and were more likely to be optimally adherent, despite the high adherence rates of CML patients at baseline. Further analysis is needed to understand the durability of this adherence improvement.
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18
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Uygur B, Leikina E, Melikov K, Villasmil R, Verma SK, Vary CPH, Chernomordik LV. Interactions with Muscle Cells Boost Fusion, Stemness, and Drug Resistance of Prostate Cancer Cells. Mol Cancer Res 2019; 17:806-820. [PMID: 30587522 PMCID: PMC8312562 DOI: 10.1158/1541-7786.mcr-18-0500] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 08/31/2018] [Accepted: 12/05/2018] [Indexed: 12/22/2022]
Abstract
Poorly understood interactions with nonmalignant cells within the tumor microenvironment play an important role in cancer progression. Here, we explored interactions between prostate cancer and muscle cells that surround the prostate. We found that coculturing of prostate cancer cells with skeletal or smooth muscle cells expands the subpopulations of cancer cells with features characteristic of cancer stem-like cells, including anchorage-independent growth, elevated CD133 expression, and drug resistance. These changes in the properties of cancer cells depend on: (i) the muscle cell-induced increases in the concentrations of interleukins 4 and 13; (ii) the cytokine-induced upregulation of the expression of syncytin 1 and annexin A5; and (iii) cancer cell fusion. In human prostate cancer tissues, expression of syncytin 1 and annexin A5, proteins that we found to be required for the cell fusion, positively correlated with the cancer development suggesting that these proteins can be used as biomarkers to evaluate cancer progression and potential therapeutic targets. IMPLICATIONS: The discovered effects of muscle cells on prostate cancer cells reveal a novel and specific pathway by which muscle cells in the microenvironment of prostate cancer cells promote cell fusion and cancer progression.
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Affiliation(s)
- Berna Uygur
- Section on Membrane Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, Maryland
| | - Evgenia Leikina
- Section on Membrane Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, Maryland
| | - Kamran Melikov
- Section on Membrane Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, Maryland
| | | | - Santosh K Verma
- Section on Membrane Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, Maryland
| | - Calvin P H Vary
- Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough, Maine
| | - Leonid V Chernomordik
- Section on Membrane Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, Maryland.
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19
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Arora A, Saini SK, Nautiyal V, Verma SK, Gupta M, Kalra BP, Ahmad M. Cancer Pain, Anxiety, and Depression in Admitted Patients at a Tertiary Care Hospital: A Prospective Observational Study. Indian J Palliat Care 2019; 25:562-566. [PMID: 31673213 PMCID: PMC6812432 DOI: 10.4103/ijpc.ijpc_4_19] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Context: Pain is the most common symptom in admitted cancer patients. The association between the severity of cancer pain and distress symptoms such as depression and anxiety is a subject of research. Aims: The aim is to study the prevalence of pain, anxiety, and depression in admitted cancer patients and determine the association between pain and anxiety and depression at a tertiary cancer care institute. Settings and Design: This was prospective observational study. Subjects and Methods: We enrolled 393 cancer inpatients prospectively after written informed consent. Their disease details, presence, severity, and character of pain were recorded. Numerical Pain Scale was used for pain scores, self-reporting Hospital Anxiety and Depression Scale for anxiety and depression. Statistical Analysis Used: Normal data were analyzed with parametric, nonnormal with nonparametric methods, and categorical with the Chi-square test. Results: The prevalence of moderate-to-severe pain was 41.5%, anxiety 20.3%, and depression 24.8%. Proportion of patients with anxiety and depression was 9.2% and 17.7% in patients with no pain; about 32.8% and 36.7% with severe pain, respectively (P < 0.000). In patients with no depression 6% had anxiety; with depression 44.9% had anxiety (P < 0.000). Odd's ratio to have anxiety and depression was 4.44 (95% confidence interval [CI] 2.0318–9.7024) and 2.92 (95% CI 1.5739–5.4186), respectively, in patients with pain as compared to no pain (P < 0.00). There was a positive correlation between pain, anxiety, and depression scores. Conclusions: There is strong association between the presence and severity of pain and distress symptoms such as anxiety and depression in admitted cancer patients.
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Affiliation(s)
- Anshika Arora
- Department of Surgery, Cancer Research Institute, SRHU, Dehradun, Uttarakhand, India
| | - Sunil K Saini
- Department of Surgery, Cancer Research Institute, SRHU, Dehradun, Uttarakhand, India
| | - Vipul Nautiyal
- Department of Radiotherapy, Cancer Research Institute, SRHU, Dehradun, Uttarakhand, India
| | - S K Verma
- Department of Medicine, Cancer Research Institute, SRHU, Dehradun, Uttarakhand, India
| | - Meenu Gupta
- Department of Radiotherapy, Cancer Research Institute, SRHU, Dehradun, Uttarakhand, India
| | - B P Kalra
- Department of Paediatrics, Cancer Research Institute, SRHU, Dehradun, Uttarakhand, India
| | - Mushtaq Ahmad
- Department of Radiotherapy, Cancer Research Institute, SRHU, Dehradun, Uttarakhand, India
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20
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Asgarzadeh M, Fischer D, Verma SK, Courtney TK, Christiani DC. The impact of weather, road surface, time-of-day, and light conditions on severity of bicycle-motor vehicle crash injuries. Am J Ind Med 2018; 61:556-565. [PMID: 29635849 DOI: 10.1002/ajim.22849] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/08/2018] [Indexed: 11/07/2022]
Abstract
BACKGROUND This study examined whether environmental variables including weather, road surface, time-of-day, and light conditions were associated with the severity of injuries resulting from bicycle-motor vehicle crashes. METHODS Using log-binomial regressions, we analyzed 113 470 police reports collected between 2000 and 2014 in four U.S. states with environmental and injury severity information. "Severe" injuries included fatal and incapacitating injuries, and "non-severe" included non-incapacitating, possible or no-injuries. RESULTS Light condition was significantly associated with the injury severity to the bicyclist with more severe injuries at dawn (RR = 1.62 [95%CI 1.35-1.94]) and during darkness (both lighted and unlighted roads: 1.32 [1.24-1.40], respectively, 1.57 [1.41-1.76]) as compared to daylight. In these conditions of low visibility, risk was further increased during early morning hours before 7 am (1.61 [1.22-2.13]). CONCLUSIONS Crashes in low light conditions and during early morning hours are more likely to result in higher injury severity.
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Affiliation(s)
- Morteza Asgarzadeh
- Harvard T.H. Chan School of Public Health; Department of Environmental Health; Boston Massachusetts
- Liberty Mutual Research Institute of Safety; Center for Injury Epidemiology; Hopkinton Massachusetts
| | - Dorothee Fischer
- Harvard T.H. Chan School of Public Health; Department of Environmental Health; Boston Massachusetts
- Liberty Mutual Research Institute of Safety; Center for Injury Epidemiology; Hopkinton Massachusetts
| | - Santosh K. Verma
- Liberty Mutual Research Institute of Safety; Center for Injury Epidemiology; Hopkinton Massachusetts
| | - Theodore K. Courtney
- Liberty Mutual Research Institute of Safety; Center for Injury Epidemiology; Hopkinton Massachusetts
| | - David C. Christiani
- Harvard T.H. Chan School of Public Health; Department of Environmental Health; Boston Massachusetts
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21
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Chandrawanshi S, Verma SK, Deb MK. Collective Ion-Pair Single-Drop Microextraction Attenuated Total Reflectance Fourier Transform Infrared Spectroscopic Determination of Perchlorate in Bioenvironmental Samples. J AOAC Int 2018; 101:1145-1155. [PMID: 28958220 DOI: 10.5740/jaoacint.17-0188] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Perchlorate (ClO4-) is an environmental pollutant that affects human health. Perchlorate acts as a competitive inhibitor of iodine uptake in the thyroid gland (sodium-iodide symporter inhibitor); thus, its determination is important for public health concerns. Water and milk constitute a significant portion of the human diet. Because regular intake leads to an increase in perchlorate concentration in the human body, the estimation of perchlorate is of great concern. In this work, ion-pair single-drop microextraction (SDME) combined with attenuated total reflectance (ATR)-FTIR spectroscopy has been developed for the determination of perchlorate in bioenvironmental (soil, water, dairy milk, breast milk, and urine) samples. Perchlorate was extracted in a single drop of methyl isobutyl ketone as an - with the cationic surfactant cetyltrimethylammonuim bromide under optimized conditions. The strongest IR peak (at 1076 cm-1) was selected for the quantification of perchlorate among three observed vibrational peaks. Eight calibration curves for different concentration ranges of perchlorate were prepared, and excellent linearity was observed for absorbance and peak area in the range of 0.03-100 ng/mL perchlorate, with r values of 0.977 and 0.976, respectively. The RSDs (n = 8) for the perchlorate concentration ranges of 0.03-100, 0.03-0.5, 0.5-10, and 10-100 ng/mL were in the range of 1.9-2.7% for the above calibration curves. The LOD and LOQ in the present work were 0.003 and 0.02 ng/mL, respectively. The extracted microdrop was analyzed directly by ATR-FTIR spectroscopy. The parameters affecting SDME, i.e, effect of pH, stirring rate, reagent concentration, microdrop volume, and extraction time, were optimized, and the role of foreign species was also investigated. F- and t-tests were performed to check the analytical QA of the method. A noteworthy feature of the reported method is the noninterference of any of the associated ions. The results were compared with those of the ion chromatography MS method, and a high degree of acceptability was found. The method was successfully applied for the determination of perchlorate in bioenvironmental samples.
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Affiliation(s)
- Swati Chandrawanshi
- Pt. Ravishankar Shukla University, School of Studies in Chemistry, Raipur, Chhattisgarh 492010, India
| | - Santosh K Verma
- Government of Chhattisgarh, Home (Police) Department, State Forensic Science Laboratory, Raipur, Chhattisgarh 492001, India
| | - Manas K Deb
- Pt. Ravishankar Shukla University, School of Studies in Chemistry, Raipur, Chhattisgarh 492010, India
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Verma SK, White JF. Indigenous endophytic seed bacteria promote seedling development and defend against fungal disease in browntop millet (Urochloa ramosa L.). J Appl Microbiol 2018; 124:764-778. [PMID: 29253319 DOI: 10.1111/jam.13673] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Revised: 11/22/2017] [Accepted: 12/11/2017] [Indexed: 11/29/2022]
Abstract
AIMS This study was conducted to investigate indigenous seed endophyte effects on browntop millet seedling development. We report that seed-inhabiting bacterial endophytes are responsible for promoting seedling development, including stimulation of root hair formation, increasing root and shoot length growth and increasing photosynthetic pigment content of seedlings. Bacterial endophytes also improved resistance of seedlings to disease. METHODS AND RESULTS A total of four endophytic bacteria were isolated from surface-sterilized seeds and identified by 16S rDNA sequencing as Curtobacterium sp. (M1), Microbacterium sp. (M2), Methylobacterium sp. (M3) and Bacillus amyloliquefaciens (M4). Removal of bacteria with streptomycin treatment from the seeds compromised seedling growth and development. When endophytes were reinoculated onto seeds, seedlings recovered normal development. Strains M3 and M4 were found to be most potent in promoting growth of seedlings. Bacteria were found to produce auxin, solubilize phosphate and inhibit fungal pathogens. Significant protection of seedlings from Fusarium infection was found using strain M4 in microcosm assays. The antifungal lipopeptide genes for surfactin and iturin were detected in M4; culture extracts of M4 showed a positive drop collapse result for surfactins. CONCLUSIONS This study demonstrates that browntop millet seeds vector indigenous endophytes that are responsible for modulation of seedling development and protection of seedlings from fungal disease. SIGNIFICANCE AND IMPACT OF THE STUDY This study is significant and original in that it is the first report of seed-inhabiting endophytes of browntop millet that influence seedling development and function in defence against soilborne pathogens. This study suggests that conservation and management of seed-vectored endophytes may be important in development of more sustainable agricultural practices.
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Affiliation(s)
- S K Verma
- Department of Plant Biology, Rutgers University, New Brunswick, NJ, USA.,Centre of Advanced Study in Botany, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - J F White
- Department of Plant Biology, Rutgers University, New Brunswick, NJ, USA
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23
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Gupta A, Verma SK, Sharma R, Parakh N, Ramakrishnan S, Roy A, Singh S, Sharma G, Karthikeyan G, Naik N, Yadav R, Mishra S, Seth S, Narang R, Goswami KC, Bhargava B, Bahl VK. Clinical and angiographic profiles and six months outcomes of smokers with acute ST segment elevation myocardial infarction undergoing primary percutaneous coronary angioplasty. Indian Heart J 2018; 70:680-684. [PMID: 30392506 PMCID: PMC6205248 DOI: 10.1016/j.ihj.2018.02.006] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 01/15/2018] [Accepted: 02/28/2018] [Indexed: 12/05/2022] Open
Abstract
Background Outcomes of primary percutaneous coronary intervention (PCI) for acute STEMI (ST-segment elevation myocardial infarction) in smokers are expected to be better than non-smokers as for patients of acute STEMI with or without fibrinolytic therapy. Objectives This comparative study was designed to evaluate the outcomes of primary PCI in patients with acute STEMI in smokers and non-smokers. Clinical and angiographic profile of the two groups was also compared. Methods Over duration of two year, a total of 150 consecutive patients of acute STEMI eligible for primary PCI were enrolled and constituted the two groups [Smokers (n = 90), Non-smokers (n = 60)] of the study population. There was no difference in procedure in two groups. Results In the present study of acute STEMI, current smokers were about a decade younger than non-smokers (p value = 0.0002), majority were male (98.9% vs 56.6%) were male with a higher prevalence of hypertension and diabetes mellitus (61.67% vs 32.28% and 46.67% vs 14.44%, p = 0.001) respectively. Smokers tended to have higher thrombus burden (p = 0.06) but less multi vessel disease (p = 0.028). Thirty day and six month mortality was non-significantly higher in smokers 4.66% vs 1.33% (p = 0.261) and 5.33% vs 2.66% (p = NS) respectively. Rate of quitting smoking among smokers was 80.90% at 6 months. Conclusion The study documents that smokers with acute STEMI have similar outcomes as compared to non smokers with higher thrombus burden and lesser non culprit artery involvement. Smokers present at much younger age emphasizing the role of smoking cessation for prevention of myocardial infarction.
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Affiliation(s)
- A Gupta
- Senior Resident, Department of cardiology, CTC, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - S K Verma
- 7th Floor, Department of Cardiology, CTC, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India.
| | - R Sharma
- Senior Resident, Department of cardiology, CTC, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - N Parakh
- 7th Floor, Department of Cardiology, CTC, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - S Ramakrishnan
- 7th Floor, Department of Cardiology, CTC, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - A Roy
- 7th Floor, Department of Cardiology, CTC, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - S Singh
- 7th Floor, Department of Cardiology, CTC, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - G Sharma
- 7th Floor, Department of Cardiology, CTC, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - G Karthikeyan
- 7th Floor, Department of Cardiology, CTC, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - N Naik
- 7th Floor, Department of Cardiology, CTC, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - R Yadav
- 7th Floor, Department of Cardiology, CTC, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - S Mishra
- 7th Floor, Department of Cardiology, CTC, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - S Seth
- 7th Floor, Department of Cardiology, CTC, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - R Narang
- 7th Floor, Department of Cardiology, CTC, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - K C Goswami
- 7th Floor, Department of Cardiology, CTC, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - B Bhargava
- 7th Floor, Department of Cardiology, CTC, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - V K Bahl
- 7th Floor, Department of Cardiology, CTC, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
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Affiliation(s)
- R Tandon
- Department of Medicine, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - S K Verma
- Department of Medicine, King George's Medical University, Lucknow, Uttar Pradesh, India
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Verma SK, Leikina E, Melikov K, Gebert C, Kram V, Young MF, Uygur B, Chernomordik LV. Cell-surface phosphatidylserine regulates osteoclast precursor fusion. J Biol Chem 2017; 293:254-270. [PMID: 29101233 DOI: 10.1074/jbc.m117.809681] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [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: 08/01/2017] [Revised: 11/02/2017] [Indexed: 12/17/2022] Open
Abstract
Bone-resorbing multinucleated osteoclasts that play a central role in the maintenance and repair of our bones are formed from bone marrow myeloid progenitor cells by a complex differentiation process that culminates in fusion of mononuclear osteoclast precursors. In this study, we uncoupled the cell fusion step from both pre-fusion stages of osteoclastogenic differentiation and the post-fusion expansion of the nascent fusion connections. We accumulated ready-to-fuse cells in the presence of the fusion inhibitor lysophosphatidylcholine and then removed the inhibitor to study synchronized cell fusion. We found that osteoclast fusion required the dendrocyte-expressed seven transmembrane protein (DC-STAMP)-dependent non-apoptotic exposure of phosphatidylserine at the surface of fusion-committed cells. Fusion also depended on extracellular annexins, phosphatidylserine-binding proteins, which, along with annexin-binding protein S100A4, regulated fusogenic activity of syncytin 1. Thus, in contrast to fusion processes mediated by a single protein, such as epithelial cell fusion in Caenorhabditis elegans, the cell fusion step in osteoclastogenesis is controlled by phosphatidylserine-regulated activity of several proteins.
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Affiliation(s)
- Santosh K Verma
- Sections on Membrane Biology, National Institutes of Health, Bethesda, Maryland 20892
| | - Evgenia Leikina
- Sections on Membrane Biology, National Institutes of Health, Bethesda, Maryland 20892
| | - Kamran Melikov
- Sections on Membrane Biology, National Institutes of Health, Bethesda, Maryland 20892
| | - Claudia Gebert
- Genomic Imprinting, Eunice Kennedy Shriver NICHD, National Institutes of Health, Bethesda, Maryland 20892
| | - Vardit Kram
- Craniofacial and Skeletal Diseases Branch, NIDCR, National Institutes of Health, Bethesda, Maryland 20892
| | - Marian F Young
- Craniofacial and Skeletal Diseases Branch, NIDCR, National Institutes of Health, Bethesda, Maryland 20892
| | - Berna Uygur
- Sections on Membrane Biology, National Institutes of Health, Bethesda, Maryland 20892
| | - Leonid V Chernomordik
- Sections on Membrane Biology, National Institutes of Health, Bethesda, Maryland 20892.
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Gupta S, Malhotra AK, Verma SK, Yadav R. In-depth Analysis of Pattern of Occupational Injuries and Utilization of Safety Measures among Workers of Railway Wagon Repair Workshop in Jhansi (U.P.). Indian J Occup Environ Med 2017; 21:138-142. [PMID: 29618914 PMCID: PMC5868089 DOI: 10.4103/ijoem.ijoem_60_17] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 11/22/2022] Open
Abstract
CONTEXT Occupational injuries constitute a global health challenge, yet they receive comparatively modest scientific attention. Pattern of occupational injuries and its safety precautions among wagon repair workers is an important health issue, especially in developing countries like India. AIMS To assess the pattern of occupational injuries and utilization of safety measures among railway wagon repair workshop workers in Jhansi (U.P.). SETTINGS AND DESIGN Railway wagon repair workshop urban area, Jhansi (U.P). Occupation-based cross-sectional study. PATIENTS AND METHODS A cross-sectional study was conducted among 309 workers of railway workshop in Jhansi (U.P.) who were all injured during the study period of 1 year from July 2015 to June 2016. Baseline characteristics, pattern of occupational injuries, safety measures, and their availability to and utilization by the participants were assessed using a pretested structured questionnaire. STATISTICAL ANALYSIS USED Data obtained were collected and analyzed statistically by simple proportions and Chi-square test. RESULTS The majority of studied workers aged between 38 and 47 years (n = 93, 30.6%) followed by 28-37 years (n = 79, 26%). Among the pattern of occupational injuries, laceration (28.7%) was most common followed by abrasion/scratch (21%). Safety shoes and hat were utilized 100% by all workers. Many of them had more than 5 years of experience (n = 237, 78%). Age group, education level, and utilization of safety measures were significantly associated with pattern of occupational injuries in univariate analysis (P < 0.05). CONCLUSIONS Occupational injuries are high and utilization of safety measures is low among workers on railway wagon repair workshop, which highlights the importance of strengthening safety regulatory services toward this group of workers. Younger age group workers show a significant association with open wounds and surface wounds. As the education level of workers increases, the incidence of injuries decreases. Apart from shoes, hat, and gloves, regular utilization of other personal protective equipment was not seen.
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Affiliation(s)
- Shubhanshu Gupta
- Department of Community Medicine, MLB Medical College, Jhansi, Uttar Pradesh, India
| | - Anil K. Malhotra
- Department of Community Medicine, MLB Medical College, Jhansi, Uttar Pradesh, India
| | - Santosh K. Verma
- Department of Community Medicine, MLB Medical College, Jhansi, Uttar Pradesh, India
| | - Rashmi Yadav
- Department of Community Medicine, MLB Medical College, Jhansi, Uttar Pradesh, India
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Verma SK, von Dohlen AR, Mowery JD, Scott D, Cerqueira-Cézar CK, Rosenthal BM, Dubey JP, Lindsay DS. Sarcocystis strixi n. sp. from a Barred Owl ( Strix varia) Definitive Host and Interferon Gamma Gene Knockout Mice as Experimental Intermediate Host. J Parasitol 2017; 103:768-777. [PMID: 28783438 DOI: 10.1645/16-173] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Here we report a new species of Sarcocystis with a barred owl ( Strix varia) as the natural definitive host and interferon gamma gene knockout (KO) mice as an experimental intermediate host. A barred owl submitted to the Carolina Raptor Center, Huntersville, North Carolina, was euthanized because of paralysis. Fully sporulated 12.5 × 9.9 μm sporocysts were found in intestinal scrapings from the owl. Sporocysts from the barred owl were orally fed to 4 laboratory-reared outbred Swiss Webster (SW) ( Mus musculus) and 8 KO mice. All mice remained asymptomatic. Microscopic sarcocysts were found in all 5 KO mice euthanized on day 32, 59, 120, 154, and 206 post-inoculation (PI), not in KO mice euthanized on day 4, 8, and 14 PI. Sarcocysts were not found in any SW mice euthanized on day 72, 120, 206, and 210 PI. Sarcocysts were microscopic, up to 70 μm wide. By light microscopy, the sarcocyst wall < 2 μm thick had undulating, flat to conical, protrusions of varying dimensions. Numerous sarcocysts were seen in the histological sections of tongue and skeletal muscles from the abdomen, limbs, and eye but not in the heart. By transmission electron microscopy, the sarcocyst wall was "type 1j." The ground substance layer (gs) was homogenous, up to 2 μm thick, with very fine granules, and a few vesicles concentrated toward the villar projections. No microtubules were seen in the gs. Longitudinally cut bradyzoites at 206 days PI were 7.8 × 2.2 μm. Based on molecular characterization using 18S rRNA, 28S rRNA, and cox1 genes and morphology of sarcocysts, the parasite in the present study was biologically and structurally different from species so far described, and we therefore propose a new species name, Sarcocystis strixi n. sp.
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Affiliation(s)
- S K Verma
- * United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Building 1001, Beltsville, Maryland 20705-2350
| | | | | | | | - C K Cerqueira-Cézar
- * United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Building 1001, Beltsville, Maryland 20705-2350
| | - B M Rosenthal
- * United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Building 1001, Beltsville, Maryland 20705-2350
| | - J P Dubey
- * United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Building 1001, Beltsville, Maryland 20705-2350
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Verma SK, von Dohlen AR, Mowery JD, Scott D, Rosenthal BM, Dubey JP, Lindsay DS. Sarcocystis jamaicensis n. sp., from Red-Tailed Hawks (Buteo jamaicensis) Definitive Host and IFN-γ Gene Knockout Mice as Experimental Intermediate Host. J Parasitol 2017. [PMID: 28644743 DOI: 10.1645/17-10] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Here, we report a new species of Sarcocystis with red-tailed hawk (RTH, Buteo jamaicensis) as the natural definitive host and IFN-γ gene knockout (KO) mice as an experimental intermediate host in which sarcocysts form in muscle. Two RTHs submitted to the Carolina Raptor Center, Huntersville, North Carolina, were euthanized because they could not be rehabilitated and released. Fully sporulated 12.5 × 9.9-μm sized sporocysts were found in intestinal scrapings of both hawks. Sporocysts were orally fed to laboratory-reared outbred Swiss Webster mice (SW, Mus musculus) and also to KO mice. The sporocysts were infective for KO mice but not for SW mice. All SW mice remained asymptomatic, and neither schizonts nor sarcocysts were found in any SW mice euthanized on days 54, 77, 103 (n = 2) or 137 post-inoculation (PI). The KO mice developed neurological signs and were necropsied between 52 to 68 days PI. Schizonts/merozoites were found in all KO mice euthanized on days 52, 55 (n = 3), 59, 61 (n = 2), 66, and 68 PI and they were confined to the brain. The predominant lesion was meningoencephalitis characterized by perivascular cuffs, granulomas, and necrosis of the neural tissue. The schizonts/merozoites were located in neural tissue and were apparently extravascular. Brain homogenates from infected KO mice were infective to KO mice by subcutaneous inoculation and when seeded on to CV-1 cells. Microscopic sarcocysts were found in skeletal muscles of 5 of 8 KO mice euthanized between 55-61 days PI. Only a few sarcocysts were detected. Sarcocysts were microscopic, up to 3.5 mm long. When viewed with light microscopy, the sarcocyst wall appeared thin (<1 μm thick) and smooth. By transmission electron microscopy, the sarcocyst wall classified as "type 1j" (new designation). Molecular characterization using 18S rRNA, 28S rRNA, ITS-1, and cox1 genes revealed a close relationship with Sarcocystis microti and Sarcocystis glareoli; both species infect birds as definitive hosts. The parasite in the present study was biologically and molecularly different from species so far described in RTHs and we therefore propose a new species name, Sarcocystis jamaicensis n. sp.
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Affiliation(s)
- S K Verma
- United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Building 1001, Beltsville, Maryland 20705-2350
| | - A Rosypal von Dohlen
- United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Building 1001, Beltsville, Maryland 20705-2350
| | - J D Mowery
- United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Building 1001, Beltsville, Maryland 20705-2350
| | - D Scott
- United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Building 1001, Beltsville, Maryland 20705-2350
| | - B M Rosenthal
- United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Building 1001, Beltsville, Maryland 20705-2350
| | - J P Dubey
- United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Building 1001, Beltsville, Maryland 20705-2350
| | - D S Lindsay
- United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Building 1001, Beltsville, Maryland 20705-2350
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Verma SK, Lindsay DS, Mowery JD, Rosenthal BM, Dubey JP. Sarcocystis pantherophisi n. sp., from Eastern Rat Snakes (Pantherophis alleghaniensis) as Definitive Hosts and Interferon Gamma Gene Knockout Mice as Experimental Intermediate Hosts. J Parasitol 2017; 103:547-554. [PMID: 28617656 DOI: 10.1645/17-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Here, we report a new species, Sarcocystis pantherophisi n. sp., with the Eastern rat snake (Pantherophis alleghaniensis) as natural definitive host and the interferon gamma gene knockout (KO) mouse as the experimental intermediate host. Sporocysts (n = 15) from intestinal contents of the snake were 10.8 × 8.9 μm. Sporocysts were orally infective to KO mice but not to laboratory-raised albino outbred house mice (Mus musculus). The interferon gamma KO mice developed schizont-associated neurological signs, and schizonts were cultivated in vitro from the brain. Mature sarcocysts were found in skeletal muscles of KO mice examined 41 days postinoculation (PI). Sarcocysts were slender, up to 70 μm wide and up to 3.5 mm long. By light microscopy, sarcocysts appeared thin-walled (<1 μm) without projections. By transmission electron microscopy, the sarcocyst wall was a variant of "type 1" (type 1i, new designation). The parasitophorous vacuolar membrane (pvm) had approximately 100-nm-wide × 100-nm-long bleb-like evaginations interspersed with 100-nm-wide × 650-nm-long elongated protrusions at irregular distances, and invaginations into the ground substance layer (gs) for a very short distance (6 nm). The gs was smooth, up to 500 nm thick, without tubules, and contained a few vesicles. Longitudinally cut bradyzoites at 54 days PI were banana-shaped, 7.8 × 2.2 μm (n = 5). Molecular characterization using 18S rRNA, 28S rRNA, ITS-1, and cox1 genes indicated a close relationship with other Sarcocystis parasites that have snake-rodent life cycles. The parasite in the present study was molecularly and biologically similar to a previously reported isolate (designated earlier as Sarcocystis sp. ex Pantherophis alleghaniensis) from P. alleghaniensis, and it was structurally different from other Sarcocystis species so far described.
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Affiliation(s)
- S K Verma
- U.S. Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Building 1001, Beltsville, Maryland 20705-2350
| | - D S Lindsay
- U.S. Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Building 1001, Beltsville, Maryland 20705-2350
| | - J D Mowery
- U.S. Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Building 1001, Beltsville, Maryland 20705-2350
| | - B M Rosenthal
- U.S. Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Building 1001, Beltsville, Maryland 20705-2350
| | - J P Dubey
- U.S. Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Building 1001, Beltsville, Maryland 20705-2350
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Verma SK, Srivastava A, Nagaraju K, Mishra AK, Goel MM. Coexistence of hard palate carcinoma with tuberculosis: A rarity. J Cancer Res Ther 2017; 13:142-144. [PMID: 28508849 DOI: 10.4103/0973-1482.174538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Coexistence of tuberculosis (TB) and palatal malignancy is a rare phenomenon and it has never been reported. Here, we present a case of hard palate carcinoma with TB in a 60-year-old male patient who was successfully managed by three pronged approaches by combining antitubercular therapy with chemotherapy and radiotherapy.
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Affiliation(s)
- S K Verma
- Department of Pulmonary Medicine, King George Medical University, Lucknow, Uttar Pradesh, India
| | - Anand Srivastava
- Department of Pulmonary Medicine, King George Medical University, Lucknow, Uttar Pradesh, India
| | - Karthik Nagaraju
- Department of Pulmonary Medicine, King George Medical University, Lucknow, Uttar Pradesh, India
| | - Ashwini Kumar Mishra
- Department of Pulmonary Medicine, King George Medical University, Lucknow, Uttar Pradesh, India
| | - M M Goel
- Department of Pathology, King George Medical University, Lucknow, Uttar Pradesh, India
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Abstract
More than 200 valid Sarcocystis species have been described in the parasitological literature. The developmental life cycle in the intermediate host and definitive host has only been described for a few species. Sarcocystis parasites are common pathogens infecting a wide range of animals, including humans, and this unit reviews the methods used for isolating infective stages of the parasite from both definitive and intermediate host(s), as well as methods used to initiate cultures from sporocysts and merozoites and for cryopreservation of various Sarcocystis spp. These methods are based on published reports and our experience with Sarcocystis species in cell culture over many years. The information presented is suitable for the efficient culture of many Sarcocystis species; however, some minor modifications may be needed based on the unique developmental patterns of some species. © 2017 by John Wiley & Sons, Inc.
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Affiliation(s)
- S K Verma
- United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Beltsville, Maryland
| | - D S Lindsay
- Department of Biomedical Science and Pathology, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, Virginia
| | - M E Grigg
- Molecular Parasitology Section, Laboratory of Parasitic Diseases, National Institutes of Health, National Institutes of Allergy, and Infectious Diseases, Bethesda, Maryland
| | - J P Dubey
- United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Beltsville, Maryland
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Verma SK, Kingsley K, Irizarry I, Bergen M, Kharwar RN, White JF. Seed-vectored endophytic bacteria modulate development of rice seedlings. J Appl Microbiol 2017; 122:1680-1691. [PMID: 28375579 DOI: 10.1111/jam.13463] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [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: 02/03/2017] [Revised: 03/26/2017] [Accepted: 03/28/2017] [Indexed: 11/30/2022]
Abstract
AIM The aim of the present study was to evaluate the effects of the removal of indigenous bacteria from rice seeds on seedling growth and development. Here we report the presence of three indigenous endophytic bacteria in rice seeds that play important roles in modulating seedling development (shoot and root lengths, and formation of root hairs and secondary roots) and defence against pathogens. METHODS AND RESULTS Seed-associated bacteria were removed using surface sterilization with NaOCl (bleach) followed by antibiotic treatment. When bacteria were absent, growth of seedlings in terms of root hair development and overall seedling size was less than that of seedlings that contained bacteria. Reactive oxygen staining of seedlings showed that endophytic bacteria became intracellular in root parenchyma cells and root hairs. Roots containing endophytic bacteria were seen to stain densely for reactive oxygen, while roots free of bacteria stained lightly for reactive oxygen. Bacteria were isolated and identified as Enterobacter asburiae (VWB1), Pantoea dispersa (VWB2) and Pseudomonas putida (VWB3) by 16S rDNA sequencing. Bacteria were found to produce indole acetic acid (auxins), inhibited the pathogen Fusarium oxysporum and solubilized phosphate. Reinoculation of bacteria onto seedlings derived from surface-disinfected rice and Bermuda grass seeds significantly restored seedling growth and development. CONCLUSION Rice seeds harbour indigenous bacterial endophytes that greatly influence seedling growth and development, including root and shoot lengths, root hair formation and disease susceptibility of rice seedlings. SIGNIFICANCE AND IMPACT OF THE STUDY This study shows that seeds of rice naturally harbour bacterial endophytes that play key roles in modulation of seedling development.
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Affiliation(s)
- S K Verma
- Department of Plant Biology, Rutgers University, New Brunswick, NJ, USA.,Centre of Advanced Study in Botany, Banaras Hindu University, Varanasi, UP, India
| | - K Kingsley
- Department of Plant Biology, Rutgers University, New Brunswick, NJ, USA
| | - I Irizarry
- Department of Plant Biology, Rutgers University, New Brunswick, NJ, USA
| | - M Bergen
- Department of Plant Biology, Rutgers University, New Brunswick, NJ, USA
| | - R N Kharwar
- Centre of Advanced Study in Botany, Banaras Hindu University, Varanasi, UP, India
| | - J F White
- Department of Plant Biology, Rutgers University, New Brunswick, NJ, USA
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Timsina LR, Willetts JL, Brennan MJ, Marucci-Wellman H, Lombardi DA, Courtney TK, Verma SK. Circumstances of fall-related injuries by age and gender among community-dwelling adults in the United States. PLoS One 2017; 12:e0176561. [PMID: 28472065 PMCID: PMC5417511 DOI: 10.1371/journal.pone.0176561] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 04/12/2017] [Indexed: 11/24/2022] Open
Abstract
INTRODUCTION Falls are the leading cause of injury in almost all age-strata in the U.S. However, fall-related injuries (FI) and their circumstances are under-studied at the population level, particularly among young and middle-aged adults. This study examined the circumstances of FI among community-dwelling U.S. adults, by age and gender. METHODS Narrative texts of FI from the National Health Interview Survey (1997-2010) were coded using a customized taxonomy to assess place, activity, initiating event, hazards, contributing factors, fall height, and work-relatedness of FI. Weighted proportions and incidence rates of FI were calculated across six age-gender groups (18-44, 45-64, 65+ years; women, men). RESULTS The proportion of FI occurring indoors increased with age in both genders (22%, 30%, and 48% among men, and 40%, 49% and 62% among women for 18-44, 45-64, 65+ age-groups, respectively). In each age group the proportion of indoor FI was higher among women as compared to men. Among women, using the stairs was the second leading activity (after walking) at the time of FI (19%, 14% and 10% for women in 18-44, 45-64, 65+ age groups, respectively). FI associated with tripping increased with age among both genders, and women were more likely to trip than men in every age group. Of all age-gender groups, the rate of FI while using ladders was the highest among middle-aged men (3.3 per 1000 person-year, 95% CI 2.0, 4.5). Large objects, stairs and steps, and surface contamination were the three most common hazards noted for 15%, 14% and 13% of fall-related injuries, respectively. CONCLUSIONS The rate and the circumstances of FI differ by age and gender. Understanding these differences and obtaining information about circumstances could be vital for developing effective interventions to prevent falls and FI.
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Affiliation(s)
- Lava R. Timsina
- Center for Injury Epidemiology, Liberty Mutual Research Institute for Safety, Hopkinton, Massachusetts, United States of America
- College of Public Health, University of Kentucky, Lexington, Kentucky, United States of America
| | - Joanna L. Willetts
- Center for Injury Epidemiology, Liberty Mutual Research Institute for Safety, Hopkinton, Massachusetts, United States of America
| | - Melanye J. Brennan
- Center for Injury Epidemiology, Liberty Mutual Research Institute for Safety, Hopkinton, Massachusetts, United States of America
| | - Helen Marucci-Wellman
- Center for Injury Epidemiology, Liberty Mutual Research Institute for Safety, Hopkinton, Massachusetts, United States of America
| | - David A. Lombardi
- Center for Injury Epidemiology, Liberty Mutual Research Institute for Safety, Hopkinton, Massachusetts, United States of America
- Environmental and Occupational Medicine and Epidemiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America
| | - Theodore K. Courtney
- Center for Injury Epidemiology, Liberty Mutual Research Institute for Safety, Hopkinton, Massachusetts, United States of America
- Environmental and Occupational Medicine and Epidemiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America
| | - Santosh K. Verma
- Center for Injury Epidemiology, Liberty Mutual Research Institute for Safety, Hopkinton, Massachusetts, United States of America
- Department of Family Medicine and Community Health, University of Massachusetts Medical School, Worcester, Massachusetts, United States of America
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Tiwana MS, Ni LH, Saini S, Verma SK, Doddamani D, Jain N, Biswas M, Gupta M, Gupta M, Saini M, Chauhan N. Radiation therapy outcomes in muscle invasive urinary bladder cancer: A single institution experience. Indian J Cancer 2017; 53:143-6. [PMID: 27146766 DOI: 10.4103/0019-509x.180842] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION To audit the survival outcomes and loco-regional control in muscle invasive urinary bladder cancer patients treated with external beam radiation therapy (RT). MATERIALS AND METHODS From November 2008 through December 2011, 50 consecutively diagnosed muscle invasive urinary bladder carcinoma (T2-4a N0-2, M0) patients were included in this retrospective study. All these patients received external beam RT to a median dose of 60 Gy (range 30-66 Gy), and were not suitable for radical surgery due to patients' preference or medical comorbidities. A stepwise procedure using proportional hazard regression was used to identify prognostic factors with respect to survival. RESULTS Completion trans-urethral resection of bladder tumor was done in 38 (76%) patients of the cohort and 47 (94%) had transitional cell carcinoma on histopathology. Clinical stage T2 was diagnosed in 40 (80%) patients. The median follow-up for the entire cohort was 14 ± 8.9 months (range 1-36 months). In conclusion, 24 patients (48%) were free of disease, 5 patients (10%) had residual disease, and 13 patients (26%) had died of disease. Two-year and 3 year overall survival of intact bladder for the entire cohort was 58% and 43.6%, respectively. Cox regression modeling strongly suggested clinical stage (P = 0.01) and RT dose (P = 0.001) as being predictors for overall survival. CONCLUSION RT shows reliable outcomes and excellent compliance in this advanced disease. Prescribing a higher RT dose could potentially correlate to better intact bladder control rates while maintaining good quality of life in selected patients.
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Affiliation(s)
| | - L H Ni
- Department of Radiation Oncology, STM Cancer Research Institute, Himalayan Institute Hospital Trust, Swami Ram Nagar, Jolly Grant, Dehradun, India
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Singh S, Verma SK, Kumar S, Ahmad MK, Nischal A, Singh SK, Dixit RK. Evaluation of Oxidative Stress and Antioxidant Status in Chronic Obstructive Pulmonary Disease. Scand J Immunol 2017; 85:130-137. [PMID: 28256060 DOI: 10.1111/sji.12498] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Accepted: 10/14/2016] [Indexed: 01/08/2023]
Abstract
Chronic obstructive pulmonary disease (COPD) is a common respiratory condition involving the airways and characterized by airflow limitation. Gaseous and noxious particles play an important role in this process. Antioxidants are the substances that may protect cells from the damage caused by unstable molecules known as free radicals. The increased oxidative stress in patients with COPD is the result of an increased burden of inhaled oxidants, as well as increased amounts of reactive oxygen species (ROS) generated by various inflammatory, immune and epithelial cells of the airways. A total of 150 subjects with COPD and 100 healthy controls subjects were enrolled in this study from the period October 2015 to January 2016. The investigation included measurements of plasma superoxide dismutase activity (SOD), catalase activity (CAT), glutathione content (GSH) reduced form, (GPx) glutathione peroxidase, glutathione reductase (GR) and lipid peroxidation (LPO). Absorbance was measured by UV spectrophotometer. The estimated values of SOD, catalase, GPx, GSH and GR were found to be significantly (P = 0.0001) lower among the cases compared with controls. But, the levels of MDA were higher (P = 0.0001) in cases as compared to control group and there was significant difference in the oxidative stress parameters among the various stages of COPD. The post hoc analysis revealed that SOD was significantly (P < 0.01) lower among the mild, moderate and severe patients compared with very severe patients. The catalase was also observed to be significantly (P = 0.01) lower among mild, moderate and severe patients than very severe patients. The GPx was found to be significantly (P = 0.002) lower among the mild, moderate and severe patients compared with very severe patients. MDA was observed to be significantly higher in mild, moderate and severe patients compared with very severe (P = 0.001). GR was significantly (P = 0.003) lower among mild, moderate and severe patients than very severe patients. However, there was no significant difference in GSH among severity of COPD patients. This study suggests that oxidant and antioxidant imbalance plays an important role in various stages of severity of COPD. These results revealed the presence of an oxidative stress in subjects with COPD, and it is proportionate to the severity of disease.
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Affiliation(s)
- S Singh
- Department of Respiratory Medicine, King George's Medical University, Lucknow, 226003, Uttar Pradesh, India
| | - S K Verma
- Department of Respiratory Medicine, King George's Medical University, Lucknow, 226003, Uttar Pradesh, India
| | - S Kumar
- Department of Respiratory Medicine, King George's Medical University, Lucknow, 226003, Uttar Pradesh, India
| | - M K Ahmad
- Department of Biochemistry, King George's Medical University, Lucknow, 226003, Uttar Pradesh, India
| | - A Nischal
- Department of Pharmacology and Therapeutics, King George's Medical University, Lucknow, 226003, Uttar Pradesh, India
| | - S K Singh
- Department of Community Medicine and Public Health, King George's Medical University, Lucknow, 226003, Uttar Pradesh, India
| | - R K Dixit
- Department of Pharmacology and Therapeutics, King George's Medical University, Lucknow, 226003, Uttar Pradesh, India
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Dhasmana R, Prakash A, Gupta N, Verma SK. Ocular manifestations in leukemia and myeloproliferative disorders and their association with hematological parameters. Ann Afr Med 2017; 15:97-103. [PMID: 27549412 PMCID: PMC5402809 DOI: 10.4103/1596-3519.188887] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Objectives: To study the ocular manifestations in patients diagnosed with leukemia or myeloproliferative disorders and to derive an association between the ocular manifestations and hematological parameters of the patients. Materials and Methods: This observational and descriptive study was conducted in a Tertiary Care Center of Dehradun, North India over a period of 1 year. All the diagnosed cases of leukemia and myeloproliferative diseases attending the Oncology Department were included. Patients underwent a detailed ocular examination. The hematological parameters were also recorded including hemoglobin (Hb), total leukocyte count (TLC), and platelet count. Results: The study included 102 patients out of which, there were 66 males (64.7%), and 36 were females (35.3%) with an age range of 5–80 years. A total of forty patients showed ocular manifestations (39.3%). Extraocular manifestations were seen in 10.8% patients while intraocular manifestations were noted in 45.1% patients of acute leukemia and 7.7% patients of chronic leukemia. These ocular manifestations showed a significant association with low Hb (P = 0.000), raised TLC (P = 0.004), and low platelet count (P = 0.000). The most common ocular manifestation was intraretinal hemorrhages followed by roth spots. Among acute myeloid leukemia patients (23.5%), the presence of intraretinal hemorrhages was significantly associated with low Hb (Mann–Whitney U-test = 25.000, P = 0.007). The patients of acute lymphoblastic leukemia (25.4%) showed significant association between intraretinal hemorrhages and low platelet count (Mann–Whitney U-test = 44.000, P = 0.046) and roth spots with low Hb (Mann–Whitney U-test = 11.000, P = 0.000). Ocular manifestations were more commonly seen in acute leukemias as compared to chronic leukemias. Conclusion: Ocular examination is recommended in all leukemic patients as ocular manifestations may go unnoticed, most patients being asymptomatic and could be an early sign of worsening of disease.
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Affiliation(s)
- Renu Dhasmana
- Department of Ophthalmology, Swami Rama Himalayan University, Dehradun, Uttarakhand, India
| | - Amrita Prakash
- Department of Ophthalmology, Swami Rama Himalayan University, Dehradun, Uttarakhand, India
| | - Neeti Gupta
- Department of Ophthalmology, Swami Rama Himalayan University, Dehradun, Uttarakhand, India
| | - S K Verma
- Department of Medicine, Swami Rama Himalayan University, Dehradun, Uttarakhand, India
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Dubey JP, A'aiz NN, Mowery JD, Verma SK, Calero-Bernal R. Identification of Macroscopic Sarcocysts of Sarcocystis cameli from One-Humped Camel ( Camelus dromedarius ) in Iraq. J Parasitol 2017; 103:168-169. [PMID: 28121491 DOI: 10.1645/16-135] [Citation(s) in RCA: 7] [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
There is considerable confusion concerning the identity of macroscopic Sarcocystis species in camels. Currently 2 species, Sarcocystis cameli and Sarcocystis ippeni, are recognized from 1-humped camel ( Camelus dromedarius ), and sarcocysts of both species are microscopic. Here, we report the identity of macroscopic sarcocysts from the C. dromedarius in Iraq as S. cameli. Five sarcocysts from the muscle of 2 adult camels collected in 1999 and stored in 10% formalin were studied by transmission electron microscopy (TEM). Sarcocysts were 1.5-5.0 mm long and 200-400 μm wide. By TEM, all 5 sarcocysts had thin sarcocyst walls. Ultrastructurally, the sarcocyst wall had "type 9j" villar protrusions similar to those of S. cameli. This is the first confirmation of macroscopic sarcocysts from 1-humped camel as S. cameli.
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Affiliation(s)
- J P Dubey
- United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Building 1001, Beltsville, Maryland 20705-2350
| | - N N A'aiz
- United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Building 1001, Beltsville, Maryland 20705-2350
| | - J D Mowery
- United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Building 1001, Beltsville, Maryland 20705-2350
| | - S K Verma
- United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Building 1001, Beltsville, Maryland 20705-2350
| | - R Calero-Bernal
- United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Building 1001, Beltsville, Maryland 20705-2350
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Abstract
Conventional designs of above knee prostheses do not permit squatting and sitting cross-legged (SCL) on the floor. These postures are commonly adopted in India and other Afro-Asian countries. A new prosthesis design permitting these postures has been evolved. Further, a modular system has been prepared to fit into a number of different leg sizes. As a result of the new technology, the ankle remains fixed in normal walking and automatically flexes during squatting. Also for SCL, the thigh rotation is automatic. Thus, no hand manipulations are needed and the movements, both going down and arising are similar to normal movements.
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Affiliation(s)
- K K Chaudhry
- Department of Applied Mechanics, Indian Institute of Technology, New Delhi
| | - S K Guha
- Centre for Biomedical Engineering, Indian Institute of Technology and All India Institute of Medical Sciences, New Delhi
| | - S K Verma
- Department of Artificial Limbs and Rehabilitation, All India Institute of Medical Sciences, New Delhi
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Lin TC, Marucci-Wellman HR, Willetts JL, Brennan MJ, Verma SK. Combining statistics from two national complex surveys to estimate injury rates per hour exposed and variance by activity in the USA. Inj Prev 2016; 22:427-431. [PMID: 27044273 PMCID: PMC5256231 DOI: 10.1136/injuryprev-2015-041885] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Revised: 03/04/2016] [Accepted: 03/08/2016] [Indexed: 11/06/2022]
Abstract
BACKGROUND A common issue in descriptive injury epidemiology is that in order to calculate injury rates that account for the time spent in an activity, both injury cases and exposure time of specific activities need to be collected. In reality, few national surveys have this capacity. To address this issue, we combined statistics from two different national complex surveys as inputs for the numerator and denominator to estimate injury rate, accounting for the time spent in specific activities and included a procedure to estimate variance using the combined surveys. METHODS The 2010 National Health Interview Survey (NHIS) was used to quantify injuries, and the 2010 American Time Use Survey (ATUS) was used to quantify time of exposure to specific activities. The injury rate was estimated by dividing the average number of injuries (from NHIS) by average exposure hours (from ATUS), both measured for specific activities. The variance was calculated using the 'delta method', a general method for variance estimation with complex surveys. RESULTS Among the five types of injuries examined, 'sport and exercise' had the highest rate (12.64 injuries per 100 000 h), followed by 'working around house/yard' (6.14), driving/riding a motor vehicle (2.98), working (1.45) and sleeping/resting/eating/drinking (0.23). The results show a ranking of injury rate by activity quite different from estimates using population as the denominator. CONCLUSIONS Our approach produces an estimate of injury risk which includes activity exposure time and may more reliably reflect the underlying injury risks, offering an alternative method for injury surveillance and research.
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Affiliation(s)
- Tin-chi Lin
- Center for Injury Epidemiology, Liberty Mutual Research Institute for Safety, Hopkinton, Massachusetts, USA
- Environmental and Occupational Medicine and Epidemiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Helen R Marucci-Wellman
- Center for Injury Epidemiology, Liberty Mutual Research Institute for Safety, Hopkinton, Massachusetts, USA
| | - Joanna L Willetts
- Center for Injury Epidemiology, Liberty Mutual Research Institute for Safety, Hopkinton, Massachusetts, USA
| | - Melanye J Brennan
- Center for Injury Epidemiology, Liberty Mutual Research Institute for Safety, Hopkinton, Massachusetts, USA
| | - Santosh K Verma
- Center for Injury Epidemiology, Liberty Mutual Research Institute for Safety, Hopkinton, Massachusetts, USA
- Department of Family Medicine and Community Health, University of Massachusetts Medical School, Worcester, Massachusetts, USA
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Verma SK, Kumar S, Deb P, Yadav KK. Rare case of radiologically distinct but pathologically admixed vestibular schwannoma and meningioma in the cerebellopontine angle: A case report. J Cancer Res Ther 2016; 11:1029. [PMID: 26881608 DOI: 10.4103/0973-1482.154027] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Primary intracranial tumors generally occur as solitary tumors. The association of two primary intracranial tumors of different histogenesis in the same individual is rare, except in cases of phakomatoses or radiation-induced tumors. Meningiomas and vestibular schwannomas (VSs) are one of the commonest tumors occurring intracranially. VS account for 80% of cerebellopontine angle (CPA) tumors, with meningiomas being the second most common tumor of the CPA. The occurrence of both a schwannoma and a meningioma in the CPA is rare. We report a case with coexistent CPA meningioma and VS, which were distinct radiologically on preoperative imaging, however had admixed areas of VS and meningioma on histopathological evaluation.
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Affiliation(s)
| | | | | | - K K Yadav
- Department of Neurosurgery, Command Hospital (Southern Command), Wanworie, Pune, Maharashtra, India
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Kumar R, Garg R, Kant S, Verma SK, Kushwaha RAS, Kumar S, Jain A. High correlation of clinical criteria in the diagnosis of drug-resistant TB and prevalence of ofloxacin resistance. Int J Tuberc Lung Dis 2016; 20:1354-1357. [PMID: 27725047 DOI: 10.5588/ijtld.16.0199] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE To study the drug resistance profile of patients with suspected multidrug-resistant tuberculosis (MDR-TB). MATERIAL AND METHODS This was a prospective study conducted among patients with suspected MDR-TB attending the Department of Respiratory Medicine, King George's Medical University, Lucknow, India, from August 2014 to April 2015. Sputum samples obtained from 50 such patients were subjected to drug susceptibility testing against first- and second-line drugs. Data on baseline characteristics were obtained from the patients and their previous medical records. RESULTS Mycobacterium tuberculosis was detected in 47/50 (94%) and non-tuberculous mycobacteria (NTM) in 3/50 (6%). Of the 47 patients with M. tuberculosis, 36 (76.6%) had MDR-TB: 24 (66.7%) of these had pre-extensively drug-resistant TB (pre-XDR-TB) and 4 (11.1%) had XDR-TB. CONCLUSIONS Among proven MDR-TB cases, approximately two thirds were pre-XDR-TB cases and more than 10% were XDR-TB cases. These form a sizeable proportion and may result in the failure of second-line treatment.
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Affiliation(s)
- R Kumar
- Department of Respiratory Medicine, King George's Medical University, Lucknow, India
| | - R Garg
- Department of Respiratory Medicine, King George's Medical University, Lucknow, India
| | - S Kant
- Department of Respiratory Medicine, King George's Medical University, Lucknow, India
| | - S K Verma
- Department of Respiratory Medicine, King George's Medical University, Lucknow, India
| | - R A S Kushwaha
- Department of Respiratory Medicine, King George's Medical University, Lucknow, India
| | - S Kumar
- Department of Respiratory Medicine, King George's Medical University, Lucknow, India
| | - A Jain
- Department of Microbiology, King George's Medical University, Lucknow, India
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Dubey JP, Calero-Bernal R, Verma SK, Mowery JD. Pathology, immunohistochemistry, and ultrastructural findings associated with neurological sarcocystosis in cattle. Vet Parasitol 2016; 223:147-52. [PMID: 27198793 DOI: 10.1016/j.vetpar.2016.04.025] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 03/03/2016] [Accepted: 04/18/2016] [Indexed: 10/21/2022]
Abstract
Paraffin-embedded blocks of brain of a nine months old bull calf that died of neurological signs in 1982 in Germany were restudied. Numerous schizonts and merozoites were found associated with extensive but focal necrosis and severe meningoencephalitis. Developing stages of schizonts as well as free merozoites were identified. The schizonts were primarily in perivascular areas. Ultrastructurally, schizonts were seen both in capillaries and in extravascular space. Merozoites were often concentrated in adventitial layers of capillaries. Schizonts divided by endopolygeny, the nucleus became multi-lobed, and at the terminal stage nuclear lobes were incorporated into budding merozoites. Individual merozoites were seen in neurons, astrocytes, oligodendrocytes, leukocytes, and vascular endothelial cells. Occasionally merozoites were present in the nucleus of mononuclear cells. Individual merozoites were ovoid, 3-5×2-3μm in size, and contained a prominent nucleus, numerous micronemes, a conoid, but no rhoptries. Schizonts and merozoites did not react to polyclonal rabbit Neospora caninum, Toxoplasma gondii, and Sarcocystis neurona antibodies but did react to Sarcocystis cruzi antibodies. Because of morphological characteristics and the type of lesions, the parasite was likely due to an unidentified Sarcocystis species, different from S. cruzi.
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Affiliation(s)
- J P Dubey
- United States Department of Agriculture, Agricultural Research Service, Animal Parasitic Diseases Laboratory, Beltsville Agricultural Research Center, Building 1001, Beltsville, MD, 20705-2350, USA.
| | - R Calero-Bernal
- United States Department of Agriculture, Agricultural Research Service, Animal Parasitic Diseases Laboratory, Beltsville Agricultural Research Center, Building 1001, Beltsville, MD, 20705-2350, USA
| | - S K Verma
- United States Department of Agriculture, Agricultural Research Service, Animal Parasitic Diseases Laboratory, Beltsville Agricultural Research Center, Building 1001, Beltsville, MD, 20705-2350, USA
| | - J D Mowery
- United States Department of Agriculture, Agricultural Research Service, Electron and Confocal Microscopy Unit, Beltsville Agricultural Research Center, Building 12, Beltsville, MD 20705-2350, USA
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Verma SK, Willetts JL, Corns HL, Marucci-Wellman HR, Lombardi DA, Courtney TK. Falls and Fall-Related Injuries among Community-Dwelling Adults in the United States. PLoS One 2016; 11:e0150939. [PMID: 26977599 PMCID: PMC4792421 DOI: 10.1371/journal.pone.0150939] [Citation(s) in RCA: 173] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Accepted: 02/21/2016] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Falls are the leading cause of unintentional injuries in the U.S.; however, national estimates for all community-dwelling adults are lacking. This study estimated the national incidence of falls and fall-related injuries among community-dwelling U.S. adults by age and gender and the trends in fall-related injuries across the adult life span. METHODS Nationally representative data from the National Health Interview Survey (NHIS) 2008 Balance and Dizziness supplement was used to develop national estimates of falls, and pooled data from the NHIS was used to calculate estimates of fall-related injuries in the U.S. and related trends from 2004-2013. Costs of unintentional fall-related injuries were extracted from the CDC's Web-based Injury Statistics Query and Reporting System. RESULTS Twelve percent of community-dwelling U.S. adults reported falling in the previous year for a total estimate of 80 million falls at a rate of 37.2 falls per 100 person-years. On average, 9.9 million fall-related injuries occurred each year with a rate of 4.38 fall-related injuries per 100 person-years. In the previous three months, 2.0% of older adults (65+), 1.1% of middle-aged adults (45-64) and 0.7% of young adults (18-44) reported a fall-related injury. Of all fall-related injuries among community-dwelling adults, 32.3% occurred among older adults, 35.3% among middle-aged adults and 32.3% among younger adults. The age-adjusted rate of fall-related injuries increased 4% per year among older women (95% CI 1%-7%) from 2004 to 2013. Among U.S. adults, the total lifetime cost of annual unintentional fall-related injuries that resulted in a fatality, hospitalization or treatment in an emergency department was 111 billion U.S. dollars in 2010. CONCLUSIONS Falls and fall-related injuries represent a significant health and safety problem for adults of all ages. The findings suggest that adult fall prevention efforts should consider the entire adult lifespan to ensure a greater public health benefit.
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Affiliation(s)
- Santosh K. Verma
- Center for Injury Epidemiology, Liberty Mutual Research Institute for Safety, Hopkinton, MA, United States of America
- Department of Family Medicine and Community Health, University of Massachusetts Medical School, Worcester, MA, United States of America
| | - Joanna L. Willetts
- Center for Injury Epidemiology, Liberty Mutual Research Institute for Safety, Hopkinton, MA, United States of America
| | - Helen L. Corns
- Center for Injury Epidemiology, Liberty Mutual Research Institute for Safety, Hopkinton, MA, United States of America
| | - Helen R. Marucci-Wellman
- Center for Injury Epidemiology, Liberty Mutual Research Institute for Safety, Hopkinton, MA, United States of America
| | - David A. Lombardi
- Center for Injury Epidemiology, Liberty Mutual Research Institute for Safety, Hopkinton, MA, United States of America
- Environmental and Occupational Medicine and Epidemiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, United States of America
| | - Theodore K. Courtney
- Center for Injury Epidemiology, Liberty Mutual Research Institute for Safety, Hopkinton, MA, United States of America
- Environmental and Occupational Medicine and Epidemiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, United States of America
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Verma SK, Leikina E, Melikov K, Chernomordik LV. Cell Fusion Stage in Osteoclast Formation. Biophys J 2016. [DOI: 10.1016/j.bpj.2015.11.2781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Mishra A, Singh A, Kumar S, Kumar M, Kant S, Verma SK, Kushwaha RAS, Garg R. Correlation between clinical characteristics, spirometric indices and high resolution computed tomography findings in patients of chronic obstructive pulmonary disease. Lung India 2016; 33:42-8. [PMID: 26933306 PMCID: PMC4748664 DOI: 10.4103/0970-2113.173064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Introduction: Chronic obstructive pulmonary disease (COPD) is a chronic inflammatory disease affecting the airways, leading to significant morbidity and mortality throughout the world. There is a need to have a holistic evaluation of COPD patients, other than just measuring the level of obstruction as performed by spirometry. High resolution computed tomography (HRCT) scan of thorax partly fulfills this requirement. Materials and Methods: Fifty patients of COPD (confirmed on spirometry as per the GOLD guidelines 2014 guidelines) were enrolled, out of which 35 patients got a HRCT done. Complete clinical evaluation was done. The Philips computer program for lung densitometry was used with these limits (−800/−1, 024 Hounsfield unit [HU]) to calculate densities, after validating densitometry values with phantoms. We established the area with a free hand drawing of the region of interest, then we established limits (in HUs) and the computer program calculated the attenuation as mean lung density (MLD) of the lower and upper lobes. Results: There was a significant correlation between smoking index and anteroposterior tracheal diameter (P = 0.036). Tracheal index was found to be decreasing with increasing disease severity which was statistically significant (P = 0.037). Mean upper lobe MLD was −839.27 HU, mean lower lobe MLD was −834.91 HU and the mean MLD was −837.08 HU. The lower lobes MLD were found to be decreasing with increasing disease severity. A mild linear correlation of pre forced expiratory volume in the first second (FEV1) was observed with lower lobe and total average MLD while a mild linear correlation of Post-FEV1 was observed with both coronal (P = 0.042) and sagittal (P = 0.001) lower lobes MLD. In addition, there was a linear correlation between both pre (P = 0.050) and post (P = 0.024) FEV1/forced vital capacity with sagittal lower lobe MLD. A predictive model can be derived to quantify obstruction severity (FEV1). Conclusion: HRCT may be an important additional tool in the holistic evaluation of COPD. HRCT can well be correlated with the spirometric and clinical features and the level of obstruction can be indirectly derived from it by measuring the MLD.
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Verma SK. Transtracheal Oxygen Therapy and Bronchial Toileting using Minitracheostomy in Patients with Advanced Respiratory Failure. Indian J Chest Dis Allied Sci 2016; 58:45-47. [PMID: 28393513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Maintaining the high oxygen demands and bronchial hygiene of critically ill patients with advanced respiratory failure is often difficult. We describe three such cases with advanced respiratory failure where a modification of conventional transtracheal oxygenation was used successfully. This method provided the added advantage of being more cost-effective and helping in easy bronchial toileting.
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Verma SK, Ghosh KK, Verma R, Verma S, N. GH, Zhao X. Activity of α-Chymotrypsin in Cationic and Nonionic Micellar Media: Ultraviolet and Fluorescence Spectroscopic Approach. INT J CHEM KINET 2015. [DOI: 10.1002/kin.20972] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Santosh K. Verma
- State Key Laboratory of Silicate Materials for Architectures; Wuhan University of Technology; Wuhan 430070 People's Republic of China
- School of Studies in Chemistry; Pt. Ravishankar Shukla University; Raipur India
| | - Kallol K. Ghosh
- School of Studies in Chemistry; Pt. Ravishankar Shukla University; Raipur India
| | - Rameshwari Verma
- State Key Laboratory of Silicate Materials for Architectures; Wuhan University of Technology; Wuhan 430070 People's Republic of China
- School of Studies in Chemistry; Pt. Ravishankar Shukla University; Raipur India
| | - Shekhar Verma
- Faculty of Pharmaceutical Sciences; Shri Shankaracharya Group of Institutions; Bhilai India
| | - Girish H. N.
- State Key Laboratory of Advance Technology for Material Synthesis and Processing; Wuhan University of Technology; Wuhan 430070 People's Republic of China
| | - Xiujian Zhao
- State Key Laboratory of Silicate Materials for Architectures; Wuhan University of Technology; Wuhan 430070 People's Republic of China
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Caban-Martinez AJ, Courtney TK, Chang WR, Lombardi DA, Huang YH, Brennan MJ, Perry MJ, Katz JN, Christiani DC, Verma SK. Leisure-Time Physical Activity, Falls, and Fall Injuries in Middle-Aged Adults. Am J Prev Med 2015; 49:888-901. [PMID: 26232899 DOI: 10.1016/j.amepre.2015.05.022] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2014] [Revised: 04/30/2015] [Accepted: 05/18/2015] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Although exercise and strength training have been shown to be protective against falls in older adults (aged 65 years and older), evidence for the role of leisure-time physical activity (LTPA) in the prevention of falls and resulting injuries in middle-aged adults (aged 45-64 years) is lacking. In the present study, we investigate the association between self-reported engagement in LTPA and the frequency of falls and fall-related injuries among middle-aged and older adults, while controlling for key sociodemographic and health characteristics. METHODS Nationally representative data from the 2010 U.S. Behavioral Risk Factor Surveillance Survey were analyzed in April 2014 to examine the number of adults aged ≥45 years who self-reported their fall experience in the previous 3 months and any injuries that resulted from those falls. We then evaluated the association between LTPA and self-reported falls and injuries across three age strata (45-54, 55-64, and ≥65 years). The two main self-reported outcome measures were (1) frequency of falls in the 3 months prior to the survey interview date and (2) the number of injuries resulting from these falls. Prevalence ratios (PRs) and 95% CIs were calculated using Poisson regression models with robust SEs. RESULTS Of 340,680 survey participants aged ≥45 years, 70.7% reported engaging in LTPA, and 17% reported one or more falls. Among those reporting a fall within 3 months, 25.6% experienced one injurious fall (fall resulting in an injury) and 8.4% reported two or more injurious falls. Controlling for sociodemographic and health characteristics, among adults aged 45-54 years, those who engaged in LTPA were significantly less likely to report one fall (PR=0.90, 95% CI=0.81, 0.99); two or more falls (PR=0.84, 95% CI=0.77, 0.93); one injurious fall (PR=0.88, 95% CI=0.78, 0.99); and two or more injurious falls (PR=0.69, 95% CI=0.58, 0.83) than those who did not exercise. A similar protective effect of LTPA on reporting falls and injuries was noted for adults aged 55-64 and ≥65 years. CONCLUSIONS Similar to older adults, middle-aged adults who engage in LTPA report fewer falls and fall-related injuries. Upon further confirmation of the relationship between LTPA and falls among middle-aged adults, fall prevention interventions could be developed for this population.
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Affiliation(s)
- Alberto J Caban-Martinez
- Center for Injury Epidemiology, Liberty Mutual Research Institute for Safety, Hopkinton, Massachusetts; Environmental and Occupational Medicine and Epidemiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Orthopaedic and Arthritis Center for Outcomes Research, Department of Orthopedic Surgery, Brigham and Women's Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts
| | - Theodore K Courtney
- Center for Injury Epidemiology, Liberty Mutual Research Institute for Safety, Hopkinton, Massachusetts; Environmental and Occupational Medicine and Epidemiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Wen-Ruey Chang
- Center for Physical Ergonomics, Liberty Mutual Research Institute for Safety, Hopkinton, Massachusetts
| | - David A Lombardi
- Center for Injury Epidemiology, Liberty Mutual Research Institute for Safety, Hopkinton, Massachusetts; Environmental and Occupational Medicine and Epidemiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Yueng-Hsiang Huang
- Center for Behavioral Sciences, Liberty Mutual Research Institute for Safety, Hopkinton, Massachusetts
| | - Melanye J Brennan
- Center for Injury Epidemiology, Liberty Mutual Research Institute for Safety, Hopkinton, Massachusetts
| | - Melissa J Perry
- Department of Environmental and Occupational Health, The George Washington University, Washington, District of Columbia
| | - Jeffrey N Katz
- Environmental and Occupational Medicine and Epidemiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Orthopaedic and Arthritis Center for Outcomes Research, Department of Orthopedic Surgery, Brigham and Women's Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts
| | - David C Christiani
- Environmental and Occupational Medicine and Epidemiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Santosh K Verma
- Center for Injury Epidemiology, Liberty Mutual Research Institute for Safety, Hopkinton, Massachusetts; Department of Family Medicine and Community Health, University of Massachusetts Medical School, Worcester, Massachusetts.
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Lin TC, Courtney TK, Lombardi DA, Verma SK. Association Between Sedentary Work and BMI in a U.S. National Longitudinal Survey. Am J Prev Med 2015; 49:e117-23. [PMID: 26437869 DOI: 10.1016/j.amepre.2015.07.024] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [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] [Received: 10/22/2014] [Revised: 07/01/2015] [Accepted: 07/14/2015] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Technological advancements have made life and work more sedentary, and long hours of sitting are known to be associated with many health concerns. Several studies have reported an association between prolonged sitting time at work and weight gain, but the results are inconsistent. This study examined the relationship between sitting time at work and BMI using data from a large prospective cohort of U.S. men and women from 2002 to 2010. Initial analyses were performed in 2013, with additional analyses in 2014 and 2015. METHODS The sample size at the base year (2002) was 5,285 and the age range 38-45 years. The outcome, BMI, was based on self-reported measures of height and weight. Estimates of workplace sitting time were linked from an external database (Occupational Information Network), and the occupation-wide rating for sitting time was linked to survey participants by occupation. Fixed-effects models controlling for time-invariant effects of all time-invariant characteristics were employed to examine the association, controlling for age, education, work hours, and hours of vigorous and light/moderate physical activities. RESULTS Longer sitting time was significantly associated with higher BMI for the overall sample (β = 0.054; p<0.05) and men (β = 0.086; p<0.01). For women, the association was not statistically significant. CONCLUSIONS The findings provide further support for initiatives to reduce workplace sitting time as a means of reducing the risk of weight gain and related health conditions.
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Affiliation(s)
- Tin-chi Lin
- Center for Injury Epidemiology, Liberty Mutual Research Institute for Safety, Hopkinton, Massachusetts; Environmental and Occupational Medicine and Epidemiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts.
| | - Theodore K Courtney
- Center for Injury Epidemiology, Liberty Mutual Research Institute for Safety, Hopkinton, Massachusetts; Environmental and Occupational Medicine and Epidemiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - David A Lombardi
- Center for Injury Epidemiology, Liberty Mutual Research Institute for Safety, Hopkinton, Massachusetts; Environmental and Occupational Medicine and Epidemiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Santosh K Verma
- Center for Injury Epidemiology, Liberty Mutual Research Institute for Safety, Hopkinton, Massachusetts; Department of Family Medicine and Community Health, University of Massachusetts Medical School, Worcester, Massachusetts
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Kumar A, Kumar M, Verma SK, Alvi PA, Jasrotia DS. Single crystal growth, x-ray structure analysis, optical band gap, raman spectra, strain tensor and photoluminscence properties in [HgCl 4] - [R] + and [ZnCl 4]- [R]+ (R= 2-amino-5- chloropyridine) hybrid materials. J Fundam and Appl Sci 2015. [DOI: 10.4314/jfas.v7i3.9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [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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