1
|
Natarajan R, Maceo Heilman B, Ho A, Singh VM, Ruggeri M, Mohamed A, Reddy JC, Parel JMA, Vadavalli PK, Manns F. Peripheral defocus of monofocal intraocular lenses. J Cataract Refract Surg 2024; 50:637-643. [PMID: 38465836 DOI: 10.1097/j.jcrs.0000000000001441] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 03/04/2024] [Indexed: 03/12/2024]
Abstract
PURPOSE To quantify the angular dependence of monofocal intraocular lens (IOL) power. SETTING Ophthalmic Biophysics Laboratory, Kallam Anji Reddy campus, L V Prasad Eye Institute, Hyderabad, India. DESIGN Laboratory study. METHODS Experiments were performed on IOLs from 2 different manufacturers (APPALENS 207, Appasamy Associates and SN60WF, Alcon Laboratories, Inc.). IOL powers ranged from 17 to 25 diopters (D). The IOLs were mounted in a fluid-filled chamber, and the on-axis and off-axis powers were measured using a laser ray tracing system over the central 3 mm zone with delivery angles ranging from -30 to +30 degrees in 5-degree increments. The position of the best focus was calculated for each IOL at each angle. The angular dependence of IOL power was compared with theoretical predictions. RESULTS Peripheral defocus increased significantly with increasing incidence angle and power. The peripheral defocus at ±30 degrees increased from 5.8 to 8.5 D when the power increased from 17.5 to 24.5 D for APPALENS 207 and from 4.9 to 7.4 D when the power increased from 17 to 25 D for SN60WF. The mean difference between the measured and theoretical tangential power at ±30 degrees was 0.50 ± 0.16 D for the APPALENS 207 and -0.40 ± 0.10 D for the SN60WF, independent of IOL power. CONCLUSIONS IOLs introduce a significant amount of peripheral defocus which varies significantly with IOL power and design. Given that peripheral defocus is related to lens power, replacement of the crystalline lens (approximately 24 D) with an IOL will produce a significant difference in peripheral defocus profile after surgery.
Collapse
Affiliation(s)
- Ramya Natarajan
- From the Ophthalmic Biophysics Laboratory, L V Prasad Eye Institute, Hyderabad, Telangana, India (Natarajan, Singh, Mohamed, Vadavalli); Ophthalmic Biophysics Center, Bascom Palmer Eye Institute, University of Miami, Miller School of Medicine, Miami, Florida (Heilman, Ruggeri, Parel, Manns); Department of Biomedical Engineering, University of Miami College of Engineering, Coral Gables, Florida (Heilman, Ruggeri, Parel, Manns); Brien Holden Vision Institute Limited, Sydney, New South Wales, Australia; School of Optometry and Vision Science, The University of New South Wales, Sydney, New South Wales, Australia (Ho); Cataract & Refractive surgery services, L V Prasad Eye Institute, Hyderabad, Telangana, India (Singh, Reddy, Vadavalli); The Shantilal Shanghvi Cornea Institute, L V Prasad Eye Institute, Hyderabad, Telangana, India (Vadavalli)
| | | | | | | | | | | | | | | | | | | |
Collapse
|
2
|
Upadhyaya A, Kiri H, Natarajan R, Hansraj S, Padhy SK, Takkar B, Padhi TR, Jalali S, Parameswarappa DC. Outcomes of vitreoretinal surgery in eyes with retinitis pigmentosa without retinal detachment. Graefes Arch Clin Exp Ophthalmol 2024; 262:441-448. [PMID: 37861848 DOI: 10.1007/s00417-023-06274-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 10/01/2023] [Accepted: 10/07/2023] [Indexed: 10/21/2023] Open
Abstract
PURPOSE Outcomes of retinal detachment (RD) have been discussed in detail in many reports of patients with retinitis pigmentosa (RP). This study tries to understand the outcomes of vitreoretinal (VR) surgery for indications other than RD in the eyes with RP. METHODS This is a retrospective study that includes clinical data from January 2013 to December 2021. Patients with RP who were treated with a VR surgical intervention were included in the study. The primary outcome of the study was to assess the changes in best-corrected visual acuity. RESULTS Forty-four eyes of 40 patients with RP were included in the study. Nearly half of the eyes (43%, 19/44) presented from 1 month to 1 year after the onset of diminished vision, with or without floaters. The mean ± standard deviation (SD) best-corrected visual acuity (BCVA) at presentation was 1.30 ± 0.79 logMAR (20/400 ± 20/125). The major surgical indications were vitreous opacities (43.2%, 19/44) and subluxated/dislocated cataractous lenses (25%, 11/44). The median follow-up duration was 8 months (interquartile range (IQR): 1.5-27). Approximately 77% (34/44) of the eyes had improvement in vision. The mean postoperative BCVA at the last follow-up was 0.95 ± 0.73 logMAR (p-value: 0.03). CONCLUSIONS Most eyes with RP recovered well after VR surgical interventions, with short-term improvements in visual acuity. It may be crucial to address the vitreous opacities and membranes as they hinder the residual central island of vision in RP. However, appropriate counselling is required regarding the progressive nature of retinal neuronal degeneration.
Collapse
Affiliation(s)
- Abhishek Upadhyaya
- Srimati Kanuri Santhamma Center for Vitreoretinal Diseases, Anant Bajaj Retina Institute, Kallam Anji Reddy Campus, L V Prasad Eye Institute, L V Prasad Marg, Banjara Hills, Hyderabad, Telangana, 500 034, India
- Standard Chartered - LVPEI Academy for Eye Care Education, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Hardik Kiri
- Srimati Kanuri Santhamma Center for Vitreoretinal Diseases, Anant Bajaj Retina Institute, Kallam Anji Reddy Campus, L V Prasad Eye Institute, L V Prasad Marg, Banjara Hills, Hyderabad, Telangana, 500 034, India
- Standard Chartered - LVPEI Academy for Eye Care Education, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Ramya Natarajan
- Department of Ophthalmic Biophysics, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Saarang Hansraj
- Srimati Kanuri Santhamma Center for Vitreoretinal Diseases, Anant Bajaj Retina Institute, Kallam Anji Reddy Campus, L V Prasad Eye Institute, L V Prasad Marg, Banjara Hills, Hyderabad, Telangana, 500 034, India
- Standard Chartered - LVPEI Academy for Eye Care Education, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Srikanta Kumar Padhy
- Vitreoretina and Uveitis Services, Anant Bajaj Retina Institute, Mithu Tulasi Chanrai Campus, L V Prasad Eye Institute, Bhubaneswar, India
| | - Brijesh Takkar
- Srimati Kanuri Santhamma Center for Vitreoretinal Diseases, Anant Bajaj Retina Institute, Kallam Anji Reddy Campus, L V Prasad Eye Institute, L V Prasad Marg, Banjara Hills, Hyderabad, Telangana, 500 034, India
- Indian Health Outcomes, Public Health, and Economics Research Center, Kallam Anji Reddy Campus, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Tapas Ranjan Padhi
- Vitreoretina and Uveitis Services, Anant Bajaj Retina Institute, Mithu Tulasi Chanrai Campus, L V Prasad Eye Institute, Bhubaneswar, India
| | - Subhadra Jalali
- Srimati Kanuri Santhamma Center for Vitreoretinal Diseases, Anant Bajaj Retina Institute, Kallam Anji Reddy Campus, L V Prasad Eye Institute, L V Prasad Marg, Banjara Hills, Hyderabad, Telangana, 500 034, India
| | - Deepika C Parameswarappa
- Srimati Kanuri Santhamma Center for Vitreoretinal Diseases, Anant Bajaj Retina Institute, Kallam Anji Reddy Campus, L V Prasad Eye Institute, L V Prasad Marg, Banjara Hills, Hyderabad, Telangana, 500 034, India.
| |
Collapse
|
3
|
Natarajan R, Mohamed A, Parameswarappa DC, Rani PK, Bagga DK, Durai CVR. Refractive outcomes following silicone oil tamponade in vitreoretinal surgery. Oman J Ophthalmol 2024; 17:25-31. [PMID: 38524345 PMCID: PMC10957052 DOI: 10.4103/ojo.ojo_274_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 09/27/2023] [Accepted: 10/11/2023] [Indexed: 03/26/2024] Open
Abstract
PURPOSE To evaluate the factors influencing the refractive outcomes following silicone oil tamponade (SOT) and silicone oil removal (SOR) in different lens statuses post-vitreoretinal surgery. DESIGN Retrospective analysis of three different lens statuses. MATERIALS AND METHODS This was a descriptive study that included 150 eyes of 147 patients who had undergone pars plana vitrectomy with SOT and SOR between January 2017 and June 2021. Demographic profile, spherical equivalent refraction (SER), and its association with clinical features were evaluated with SOT and post-SOR. RESULTS The mean (±standard deviation [SD]) age was 47 ± 17.8 years, including all three groups. SER was represented in diopters (D). The mean ± SD refraction with SOT in phakic, pseudophakic, and aphakic was 4.28 ± 2.59 D, 2.94 ± 2.58 D, and 3.98 ± 4.82 D. The mean SER post-SOR in phakic, pseudophakic, and aphakic was -2.72 ± 2.03 D, -1.12 ± 1.41 D, and 8.22 ± 3.70 D. The diagnosis of rhegmatogenous retinal detachment (RRD) among 96 eyes (64%) is the common indicator to perform vitreoretinal (VR) surgery. A minority of subjects were managed with retinal lasers before VR surgery (14%). The macula was attached in 100 eyes (67.6%), the belt buckle was done in 37 eyes (24.7%), and the silicone oil viscosity with 1000 centistoke was chosen in 129 eyes (86%). CONCLUSION SOT was used as a tamponade in VR surgeries irrespective of lens status. The significant predictor for post-SOR refraction in phakic and aphakic is post-SOT refraction. In pseudophakic, gender and diagnosis of RRD are the predictors of SOR refraction.
Collapse
Affiliation(s)
- Ramya Natarajan
- Ophthalmic Biophysics Laboratory, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Ashik Mohamed
- Ophthalmic Biophysics Laboratory, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Deepika C. Parameswarappa
- Anand Bajaj Retina Institute and Srimati Kanuri Santhamma Center for Vitreo-Retinal Diseases, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Padmaja Kumari Rani
- Anand Bajaj Retina Institute and Srimati Kanuri Santhamma Center for Vitreo-Retinal Diseases, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Deepak Kumar Bagga
- Meera and L B Deshpande Centre for Sight Enhancement, Institute for Vision Rehabilitation, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - C. Vijay Reena Durai
- Prof. Brien Holden Eye Research Centre, Brien Holden Institute of Optometry and Vision Sciences, L V Prasad Eye Institute, Hyderabad, Telangana, India
| |
Collapse
|
4
|
Shetty PA, Natarajan R, Bhalerao SA, Vuyyuru S, Thigale UY, Tara D. Prognostic factors for visual outcome after surgical repair of limbal corneal laceration at a tertiary eye care center in South India. Indian J Ophthalmol 2023; 71:3198-3202. [PMID: 37602608 PMCID: PMC10565948 DOI: 10.4103/ijo.ijo_156_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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 05/01/2023] [Accepted: 06/03/2023] [Indexed: 08/22/2023] Open
Abstract
Purpose To determine the factors affecting the visual outcome after surgical repair of limbal corneal lacerations at a tertiary eye care center in South India. Methods A retrospective analysis of patients diagnosed with limbal tears between 2011 and 2021 was conducted. Demographic information such as age, gender, cause of injury, and size of the laceration was recorded. Comprehensive ocular examination was performed, including gentle B scan evaluation whenever not contraindicated for detailed posterior segment evaluation. Only those cases with a minimum follow-up of one year were included. Postoperative best-corrected visual acuity, intraocular pressure (IOP), cornea clarity, and integrity of the wound at last follow-up were noted. Results Out of the 20 patients, 15 (75%) were males and 5 (25%) were females. The mean age was 42.6 ± 22.4 years. All 20 patients had a penetrating injury, with four (20%) injured by a stick, two (10%) by an iron rod, three (15%) due to road traffic accident (RTA), three (15%) by glass, and eight (40%) with other nonspecific objects [two (10%) with needle, two (10%) with elastic rope, two (10%) with bangle, and two (10%) with metal]. The average time between the injury and the surgery was 48 hours (2 days). Four (20%) patients underwent a second surgery within a week of repair. After limbal tear repair, at final follow-up at 3 years, 7 (35%) had VA worse than 20/800, 3 (15%) had VA between 20/100 and 20/800, and 10 (50%) achieved VA better than 20/80. Conclusion Preoperative visual acuity (VA), mode of injury, and size of wound affect the final visual outcome after surgical repair of limbal corneal laceration. Preoperative VA and mode of injury were statistically significant even in the multivariate analysis.
Collapse
Affiliation(s)
- Prerana A Shetty
- Shantilal Shanghvi Cornea Institute (SSCI), KVC Campus, L. V. Prasad Eye Institute, Vijayawada, Andhra Pradesh, India
| | - Ramya Natarajan
- Department of Ophthalmic Biophysics, KAR Campus, L. V. Prasad Eye Institute, Hyderabad, Telangana, India
| | - Sushank A Bhalerao
- Shantilal Shanghvi Cornea Institute (SSCI), KVC Campus, L. V. Prasad Eye Institute, Vijayawada, Andhra Pradesh, India
| | - Sowjanya Vuyyuru
- Shantilal Shanghvi Cornea Institute (SSCI), KVC Campus, L. V. Prasad Eye Institute, Vijayawada, Andhra Pradesh, India
| | - Uma Yogesh Thigale
- Shantilal Shanghvi Cornea Institute (SSCI), KVC Campus, L. V. Prasad Eye Institute, Vijayawada, Andhra Pradesh, India
| | - Divya Tara
- Shantilal Shanghvi Cornea Institute (SSCI), KVC Campus, L. V. Prasad Eye Institute, Vijayawada, Andhra Pradesh, India
| |
Collapse
|
5
|
Natarajan R, Duchon J, Jassar R. Impact of simulation on multidisciplinary NICU teamwork during delivery and transport of extremely preterm infants. J Neonatal Perinatal Med 2023; 16:39-47. [PMID: 36872794 DOI: 10.3233/npm-221118] [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: 03/06/2023]
Abstract
BACKGROUND AND OBJECTIVES Multidisciplinary teamwork during delivery room (DR) resuscitation and timely transport to the neonatal intensive care unit (NICU) can reduce morbidity and mortality for infants born Extremely Preterm (EP). We aimed to assess the impact of a multidisciplinary high-fidelity simulation curriculum on teamwork during resuscitation and transport of EP infants. METHODS In a prospective study conducted at a Level III academic center, seven teams (each consisting of one NICU fellow, two NICU nurses, and one respiratory therapist) performed three high-fidelity simulation scenarios. Videotaped scenarios were graded by three independent raters using the Clinical Teamwork Scale (CTS). Times of completion of key resuscitation and transport tasks were recorded. Pre- and post- intervention surveys were obtained. RESULTS Overall, time of completion of key resuscitation and transport tasks decreased, with significant decreases in the time to attach the pulse oximeter, transfer of the infant to the transport isolette, and exit the DR. There was no significant difference in CTS scores from Scenario 1 to 3. Scenarios led by first-year fellows showed a trend towards improvement in all CTS categories. A comparison of teamwork scores pre- and post-simulation curriculum during direct observation of high-risk deliveries in real time revealed a significant increase in each CTS category. CONCLUSION A high-fidelity teamwork-based simulation curriculum decreased time to complete key clinical tasks in the resuscitation and transport of EP infants, with a trend towards increased teamwork in scenarios led by junior fellows. There was improvement of teamwork scores during high-risk deliveries on pre-post curriculum assessment.
Collapse
Affiliation(s)
- R Natarajan
- Division of Neonatology, Joseph M. Sanzari Children's Hospital, Hackensack University Medical Center, Hackensack, NJ, USA.,Hackensack Meridian School of Medicine, Nutley, NJ, USA
| | - J Duchon
- Department of Pediatrics, Mount Sinai West, New York, NY, USA
| | - R Jassar
- Division of Newborn Medicine, Massachusetts General Hospital for Children, Massachusetts General Hospital, Boston, MA
| |
Collapse
|
6
|
Parameswarappa DC, Jalali S, Marmamula S, Natarajan R, Mettla AL, Giridhar P, Banerjee S, Shekhar K, Chakrabarti S, Khanna RC. Visual impairment and blindness due to retinitis pigmentosa in India: 15-year follow-up of the Andhra Pradesh Eye Disease Study cohort. Indian J Ophthalmol 2023; 71:902-908. [PMID: 36872706 DOI: 10.4103/ijo.ijo_1610_22] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023] Open
Abstract
Purpose To assess the incidence, visual impairment, and blindness due to retinitis pigmentosa (RP) in a rural southern Indian cohort. Methods This is a population-based longitudinal cohort study of participants with RP from the Andhra Pradesh Eye Disease Study (APEDS) cohorts I and III, respectively. The study included participants with RP of APEDS I who were followed until APEDS III. Their demographic data along with ocular features, fundus photographs, and visual fields (Humphrey) were collected. Descriptive statistics using mean ± standard deviation with interquartile range (IQR) were calculated. The main outcome measures were RP incidence, visual impairment, and blindness as per the World Health Organization (WHO) definitions. Results At baseline (APEDS I), 7771 participants residing in three rural areas were examined. There were nine participants with RP with a mean age at baseline of 47.33 ± 10.89 years (IQR: 39-55). There was a male preponderance (6:3), and the mean best-corrected visual acuity (BCVA) of 18 eyes from nine participants with RP was 1.2 ± 0.72 logarithm of minimum angle of resolution (logMAR; IQR: 0.7-1.6). Over a mean follow-up duration of 15 years, 5395/7771 (69.4%) were re-examined, which included seven RP participants from APEDS 1. Additionally, two new participants with RP were identified; so, the overall incidence was 370/ million in 15 years (24.7/million per year). The mean BCVA of 14 eyes of seven participants with RP who were re-examined in APEDS III was 2.17 ± 0.56 logMAR (IQR: 1.8-2.6), and five of these seven participants with RP developed incident blindness during the follow-up period. Conclusion RP is a prevalent disease in southern India that warrants appropriate strategies to prevent this condition.
Collapse
Affiliation(s)
- Deepika C Parameswarappa
- Srimati Kanuri Santhamma Center for Vitreo - Retinal Diseases, Anant Bajaj Retina Institute, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Subhadra Jalali
- Srimati Kanuri Santhamma Center for Vitreo - Retinal Diseases, Anant Bajaj Retina Institute, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Srinivas Marmamula
- Allen Foster Community Eye Health Research Centre, Gullapalli Pratibha Rao International Centre for Advancement of Rural Eye care, L V Prasad Eye Institute; Brien Holden Eye Research Centre, L.V. Prasad Eye Institute, Banjara Hills, Hyderabad, India; School of Optometry and Vision Science, University of New South Wales, Sydney, Australia
| | - Ramya Natarajan
- Ophthalmic Biophysics lab, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Asha L Mettla
- Allen Foster Community Eye Health Research Centre, Gullapalli Pratibha Rao International Centre for Advancement of Rural Eye care, L V Prasad Eye Institute; Brien Holden Eye Research Centre, L.V. Prasad Eye Institute, Banjara Hills, Hyderabad, India
| | - Pyda Giridhar
- Allen Foster Community Eye Health Research Centre, Gullapalli Pratibha Rao International Centre for Advancement of Rural Eye care, L V Prasad Eye Institute; Brien Holden Eye Research Centre, L.V. Prasad Eye Institute, Banjara Hills, Hyderabad, India
| | - Seema Banerjee
- Department of Ophthalmology, The Wilmer eye institute, Johns Hopkins University, School of medicine, Baltimore, Maryland, USA
| | - Konegari Shekhar
- Allen Foster Community Eye Health Research Centre, Gullapalli Pratibha Rao International Centre for Advancement of Rural Eye care, L V Prasad Eye Institute; Brien Holden Eye Research Centre, L.V. Prasad Eye Institute, Banjara Hills, Hyderabad, India
| | - Subhabrata Chakrabarti
- Brien Holden Eye Research Centre, L.V. Prasad Eye Institute, Banjara Hills, Hyderabad, India
| | - Rohit C Khanna
- Allen Foster Community Eye Health Research Centre, Gullapalli Pratibha Rao International Centre for Advancement of Rural Eye care, L V Prasad Eye Institute, Hyderabad, India; Brien Holden Eye Research Centre, L.V. Prasad Eye Institute, Banjara Hills, Hyderabad, India; School of Optometry and Vision Science, University of New South Wales, Sydney, Australia; University of Rochester, School of Medicine and Dentistry, Rochester, NY, USA
| |
Collapse
|
7
|
Visa Shalini P, Shriram AN, Elango A, Natarajan R, Vijayakumar B, Raju KHK, Dengel L, Gunasekaran K, Kumar A. Mosquito Diversity in an Experimental Township in Tamil Nadu, India. J Med Entomol 2022; 59:1615-1624. [PMID: 35703108 PMCID: PMC9473653 DOI: 10.1093/jme/tjac064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Indexed: 06/15/2023]
Abstract
To glean more information on mosquito diversity and distribution in Auroville, a cross-sectional study was carried out by mapping the distribution of water bodies and habitats supporting immature stages on the one hand and the distribution of water bodies/habitats supporting mosquito immature stages on the other. A satellite image covering an area of 8.08 km2 was overlaid with a grid of 500 × 500 m. Fifteen modules were selected and the area of each module served as the sampling site for the entomological survey. Adult and larval stages were sampled. Diversity indices were analyzed to compare mosquito diversity. Rarefaction estimations were used to compare abundance and richness of the mosquito species between different zones. In total, 750 mosquito larvae and 84 resting adults were sampled. Eighteen species of mosquitoes belonging to 11 subgenera and 7 genera were documented. Genera included Aedes (Johann Wilhelm Meigen 1818, Diptera, Culicidae), Anopheles (Johann Wilhelm Meigen 1818, Diptera, Culicidae), Armigeres (Theobald 1901, Diptera, Culicidae), Culex (Carl Linnaeus 1758, Diptera, Culicidae), Lutzia (Theobald 1903, Diptera, Culicidae), and Mimomyia (Theobald 1903, Diptera, Culicidae). Of the 18 mosquito species identified, 8 species are new records for Auroville. The Alpha (α) biodiversity indices show that the mosquito fauna is diverse (S = 18; DMg = 2.732 [95% CI: 2.732-2.732]). The Shannon-Weiner (H' = 2.199 [95% CI: 2.133-2.276]) and Simpson indices (λ = 0.8619 [95% CI: 0.8496-0.8723]) measured species richness, evenness, and dominance. The values of these indices suggest high species richness, evenness, and dominance. Prevailing conditions can provide suitable environment for establishment of different mosquito species in this ecosystem. Given the sociodemographic characteristics of this area, research on mosquito diversity and risk of vector-borne diseases will be of great use.
Collapse
Affiliation(s)
- P Visa Shalini
- ICMR-Vector Control Research Centre, Department of Health Research, Ministry of Health & Family Welfare, GOI, Medical Complex, Indira Nagar, Puducherry 605 006, India
| | | | - A Elango
- ICMR-Vector Control Research Centre, Department of Health Research, Ministry of Health & Family Welfare, GOI, Medical Complex, Indira Nagar, Puducherry 605 006, India
| | - R Natarajan
- ICMR-Vector Control Research Centre, Department of Health Research, Ministry of Health & Family Welfare, GOI, Medical Complex, Indira Nagar, Puducherry 605 006, India
| | - B Vijayakumar
- ICMR-Vector Control Research Centre, Department of Health Research, Ministry of Health & Family Welfare, GOI, Medical Complex, Indira Nagar, Puducherry 605 006, India
| | - K H K Raju
- ICMR-Vector Control Research Centre, Department of Health Research, Ministry of Health & Family Welfare, GOI, Medical Complex, Indira Nagar, Puducherry 605 006, India
| | - Lucas Dengel
- EcoPro, Aurosarjan Complex, Auroshilpam, Auroville, Tamil Nadu 605 101, India
| | - K Gunasekaran
- ICMR-Vector Control Research Centre, Department of Health Research, Ministry of Health & Family Welfare, GOI, Medical Complex, Indira Nagar, Puducherry 605 006, India
| | - Ashwani Kumar
- ICMR-Vector Control Research Centre, Department of Health Research, Ministry of Health & Family Welfare, GOI, Medical Complex, Indira Nagar, Puducherry 605 006, India
| |
Collapse
|
8
|
Parameswarappa DC, Das AV, Doctor MB, Natarajan R, Agarwal K, Jalali S. Retinitis pigmentosa in Usher syndrome in India: Electronic medical records driven big data analytics: Report III. Indian J Ophthalmol 2022; 70:2540-2545. [PMID: 35791152 PMCID: PMC9426063 DOI: 10.4103/ijo.ijo_2272_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Purpose: To describe the clinical presentation and demographic distribution of retinitis pigmentosa (RP) in patients with Usher syndrome (USH). Methods: This is a cross-sectional observational hospital-based study including patients presenting between March 2012 and October 2020. In total, 401 patients with a clinical diagnosis of USH and RP in at least one eye were included as cases. The data were retrieved from the electronic medical record database. For better analysis, all 401 patients were reclassified into three subtypes (type 1, type 2, and type 3) based on the USH criteria. Results: In total, there were 401 patients with USH and RP, with a hospital-based prevalence rate of 0.02% or 2/10,000 population. Further, 353/401 patients were subclassified, with 121 patients in type 1, 146 patients in type 2, and 86 patients in the type 3 USH group. The median age at presentation was 27 years (IQR: 17.5–38) years. There were 246 (61.35%) males and 155 (38.65%) females. Males were more commonly affected in all three subtypes. Defective night vision was the predominant presenting feature in all types of USH (type 1: 43 (35.54%), type 2: 68 (46.58%), and type 3: 40 (46.51%) followed by defective peripheral vision. Patients with type 2 USH had more eyes with severe visual impairment. Conclusion: RP in USH is commonly bilateral and predominantly affects males in all subtypes. Patients with USH and RP will have more affection of peripheral vision than central vision. The key message of our study is early visual and hearing rehabilitation in USH patients with prompt referral to otolaryngologists from ophthalmologists and vice versa.
Collapse
Affiliation(s)
| | - Anthony Vipin Das
- Department of EyeSmart EMR & Aeye, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | | | - Ramya Natarajan
- Department of Ophthalmic Biophysics, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Komal Agarwal
- Srimati Kanuri Santamma Centre for Vitreoretinal Diseases, Hyderabad, Telangana, India
| | - Subhadra Jalali
- Srimati Kanuri Santamma Centre for Vitreoretinal Diseases, Hyderabad, Telangana, India
| |
Collapse
|
9
|
Parameswarappa DC, Doctor MB, Natarajan R, Rani PK, Garudadri C, Jalali S, Senthil S. Clinical characteristics of comorbid retinal dystrophies and primary angle closure disease. Int Ophthalmol 2022; 42:3137-3144. [PMID: 35585370 DOI: 10.1007/s10792-022-02313-6] [Citation(s) in RCA: 2] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 04/18/2022] [Indexed: 11/24/2022]
Abstract
PURPOSE To assess the clinical characteristics of comorbid retinal dystrophies and primary angle closure disease. DESIGN Retrospective study from January 1992 to June 2020. METHODS This descriptive study included 92 eyes of 46 patients with comorbid retinal dystrophies and primary angle closure disease (PACD) that included eyes with primary angle closure suspect, primary angle closure and primary angle closure glaucoma. Demographic profile, clinical characteristics of PACD and its association with retinal dystrophies are described. RESULTS The study included 46 patients (92 eyes). Males were majority, 63%. Mean (± standard deviation) age when retinal dystrophy was diagnosed was 29.6 ± 9.4 years and PACD was diagnosed at 32.23 ± 7.92 years. Mean BCVA at presentation was 1.07 ± 0.87 log MAR [95% confidence interval (CI) 0.87, 1.26]. Mean Intraocular pressure at diagnosis of glaucoma was 27 ± 16 mmHg (95% CI 23.5, 31.5 mmHg). The most common retinal dystrophy associated with PACD was retinitis pigmentosa (RP) followed by RP with retinoschisis. The hospital-based prevalence of PACD among all patients with RP and retinoschisis was 0.19% and 0.15% respectively. Laser peripheral iridotomy was performed in 74 eyes (80.5%). Glaucoma was managed medically in majority of the eyes (58 eyes, 63.04%) and minority required surgical management with trabeculectomy (11, 11.9%). CONCLUSION Retinitis pigmentosa is the most common retinal dystrophy associated with PACD. Comorbid PACD in eyes with retinal dystrophies was observed in second to third decade of life. This calls for screening for angle closure in eyes with retinal dystrophies from second decade onwards to identify the comorbid PACD and treat or refer them appropriately.
Collapse
Affiliation(s)
- Deepika C Parameswarappa
- Srimati Kanuri Santhamma Center for Vitreo - Retinal Diseases. Anant Bajaj Retina Institute, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Mariya Bashir Doctor
- Standard Charted Eye Care Education, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Ramya Natarajan
- Ophthalmic Biophysics Lab, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Padmaja Kumari Rani
- Srimati Kanuri Santhamma Center for Vitreo - Retinal Diseases. Anant Bajaj Retina Institute, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | | | - Subhadra Jalali
- Srimati Kanuri Santhamma Center for Vitreo - Retinal Diseases. Anant Bajaj Retina Institute, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Sirisha Senthil
- VST Center for Glaucoma Care, L V Prasad Eye Institute, Hyderabad, Telangana, India.
| |
Collapse
|
10
|
Onyeziri MC, Hardy GG, Natarajan R, Xu J, Reynolds IP, Kim J, Merritt PM, Danhorn T, Hibbing ME, Weisberg AJ, Chang JH, Fuqua C. Dual adhesive unipolar polysaccharides synthesized by overlapping biosynthetic pathways in Agrobacterium tumefaciens. Mol Microbiol 2022; 117:1023-1047. [PMID: 35191101 PMCID: PMC9149101 DOI: 10.1111/mmi.14887] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 01/28/2022] [Accepted: 02/07/2022] [Indexed: 11/29/2022]
Abstract
Agrobacterium tumefaciens is a member of the Alphaproteobacteria that pathogenises plants and associates with biotic and abiotic surfaces via a single cellular pole. A. tumefaciens produces the unipolar polysaccharide (UPP) at the site of surface contact. UPP production is normally surface-contact inducible, but elevated levels of the second messenger cyclic diguanylate monophosphate (cdGMP) bypass this requirement. Multiple lines of evidence suggest that the UPP has a central polysaccharide component. Using an A. tumefaciens derivative with elevated cdGMP and mutationally disabled for other dispensable polysaccharides, a series of related genetic screens have identified a large number of genes involved in UPP biosynthesis, most of which are Wzx-Wzy-type polysaccharide biosynthetic components. Extensive analyses of UPP production in these mutants have revealed that the UPP is composed of two genetically, chemically, and spatially discrete forms of polysaccharide, and that each requires a specific Wzy-type polymerase. Other important biosynthetic, processing, and regulatory functions for UPP production are also revealed, some of which are common to both polysaccharides, and a subset of which are specific to each type. Many of the UPP genes identified are conserved among diverse rhizobia, whereas others are more lineage specific.
Collapse
Affiliation(s)
| | - Gail G. Hardy
- Department of Biology, Indiana University, Bloomington, IN 47405
| | - Ramya Natarajan
- Department of Biology, Indiana University, Bloomington, IN 47405
| | - Jing Xu
- Department of Biology, Indiana University, Bloomington, IN 47405
| | - Ian P. Reynolds
- Department of Biology, Indiana University, Bloomington, IN 47405
| | - Jinwoo Kim
- Department of Biology, Indiana University, Bloomington, IN 47405
| | - Peter M. Merritt
- Department of Biology, Indiana University, Bloomington, IN 47405
| | - Thomas Danhorn
- Department of Biology, Indiana University, Bloomington, IN 47405
| | | | - Alexandra J. Weisberg
- Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR 97331
| | - Jeff H. Chang
- Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR 97331
| | - Clay Fuqua
- Department of Biology, Indiana University, Bloomington, IN 47405
| |
Collapse
|
11
|
Chandramohan V, Natarajan R, Vishwanath R Hiremath. Comparative study of hemodynamic responses during laryngoscopy and endotracheal intubation with dexmedetomidine and esmolol. Asian J Med Sci 2022. [DOI: 10.3126/ajms.v13i3.40791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Background: Many drugs used to reduce the hemodynamic stress response during laryngoscopy and endotracheal intubation. The quest for ideal drugs and their dosage without major side effects is still pursued. Dexmedetomidine, an alpha-2 agonist, is emerging as a promising drug to counteract the catecholamine release.
Aims and Objectives: This study is done to compare the effect of lower doses dexmedetomidine and esmolol in control of hemodynamic response and stability in cases undergoing laryngoscopy and endotracheal intubation during general anesthesia.Setting and Design: This was a prospective, randomized double-blinded comparative study.
Materials and Methods: After approved by the Institute Ethics Committee, consent obtained from 60 patients (n=60) belonging to ASA I or II. Patients were equally divided into twogroups (D and E). Group D patients (n=30) were infused with intravenous dexmedetomidine at 0.75 mcg/kg diluted in 20 ml with normal saline 10 min before induction. Group E patients (n=30) were infused with intravenous esmolol 0.75 mg/kg diluted in 20 ml of normal saline 2 min before intubation. After administration of drugs, SBP, DBP, MAP, HR, and SpO2 were recorded, immediately after induction, after intubation at 1 min, 3 min, 5 min, and 10 min, respectively.
Results: Data wereentered into Microsoft Excel datasheet and wereanalyzed using SPSS 22 version software. In the study, there was a significant decrease in SBP, DBP, MAP, and HR from administration till 10 min after intubation inGroup D compared to Group E. No severe hypotension or bradycardia was seen in any of the patients in either group, took part in our study.
Conclusion: This study concludes low dose of dexmedetomidine (0.75mcg/kg) was superior to low dose of esmolol (0.75 mg/kg) in maintaining of hemodynamic stability in response to laryngoscopy and tracheal intubation without any significant adverse effects even though both drugs were comparable in suppressing pressor response.
Collapse
|
12
|
Dave TV, Jonnadula GB, Lanka P, Natarajan R, Dave VP. Choroidal vascularity index in thyroid eye disease: comparison with controls and application in diagnosing non-inflammatory active disease. Orbit 2022; 41:89-96. [PMID: 34979862 DOI: 10.1080/01676830.2021.2014893] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [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: 10/19/2022]
Abstract
PURPOSE To report the differences in choroidal vascularity index (CVI) in thyroid eye disease (TED) and normals and its discriminatory value for differentiating various stages of TED. METHODS Prospective, cross-sectional, non-interventional imaging study. Ninety-four eyes of 54 patients were included and divided into 5 groups - normal controls (C), inactive TED (I), active TED (A), non-inflammatory active TED (NIA) and systemic hyperthyroid disorder but no TED (SYS). Choroidal images were acquired using the swept-source optical coherence tomography and the choroid was binarized to calculate the CVI. RESULTS Ninety-four eyes were included. Mean age was 44.52 ± 10.02 years (median 46 years, range 19-65 years). Mean IOP was 16.1 ± 3.37 mm Hg (median 16 mm Hg, range 16-24 mm Hg). Mean Spherical equivalent (SE) was -0.08 ± 1.86 diopters (median 0, range -2.5 to +2.25). Intra-rater agreement was 0.84 (p < 0.001). Inter-rater agreement was noted to be 0.85 (p < 0.001) for consistency and 0.77 (p < 0.001) for absolute agreement. CVI in the A group was 70.11 ± 3.38% and in the NIA group was 69.32 ± 3.5%. Both were comparable to each other and significantly higher than the C, I and SYS groups (p < 0.001). Multiple regression showed that the Clinical Activity Score (CAS) had a positive effect and spheroequivalent had a negative effect on the CVI. At CVI of 66.83%, active TED can be diagnosed with sensitivity of 91.67% and specificity of 82.14% . CONCLUSIONS CVI is significantly higher in active TED and NIA TED compared to other groups. It has a good value in differentiating the non-inflammatory active TED eyes from the inactive eyes.
Collapse
Affiliation(s)
- Tarjani Vivek Dave
- Ophthalmic Plastic Surgery Service, Kallam Anji Reddy Campus, LV Prasad Eye Institute, Hyderabad, India
| | - Ganesh Babu Jonnadula
- Image Reading Center, Kallam Anji Reddy Campus, LV Prasad Eye Institute, Hyderabad, India
| | - Prashanthi Lanka
- Image Reading Center, Kallam Anji Reddy Campus, LV Prasad Eye Institute, Hyderabad, India
| | - Ramya Natarajan
- Ophthalmic Biophysics, Kallam Anji Reddy Campus, Lv Prasad Eye Institute, Hyderabad, India
| | - Vivek Pravin Dave
- Smt. Kanuri Santhamma Center for Vitreoretinal Diseases, Kallam Anji Reddy Campus, Lv Prasad Eye Institute, Hyderabad, India
| |
Collapse
|
13
|
Dave TV, Natarajan R, Reddy RU, Kapoor AG, Dave VP. Choroidal Thickness in Thyroid Eye Disease: Comparison With Controls and Application in Diagnosing Non-Inflammatory Active Disease. Cureus 2021; 13:e19779. [PMID: 34956776 PMCID: PMC8693536 DOI: 10.7759/cureus.19779] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/20/2021] [Indexed: 11/13/2022] Open
Abstract
Introduction Choroidal thickness is known to vary in various systemic diseases. In the current study, we aim to report the differences in choroidal thickness in thyroid eye disease (TED) and normals and its discriminatory value for differentiating various stages of TED. Methods Prospective, cross-sectional, non-interventional imaging study. In an institutional practice, 102 eyes of 51 patients were included and divided into five groups: normal controls (C), inactive TED (I), active TED (A), non-inflammatory active TED (NIA) and systemic thyroid disorder but no TED (SYS). Choroidal images were acquired using the swept-source optical coherence tomography (Topcon DRI OCT Triton) with automatic layer segmentation which provided an automatic measurement of the subfoveal choroidal thickness and the mean in nine subfields based on the Early Treatment Diabetic Retinopathy Study (ETDRS) grid. One-way analysis of variance (ANOVA), Youden index and area under the receiver operating characteristic curves (AUROC) were reported. Results Central choroidal thickness in the A group was 279±37.52 microns and in the NIA group was 302.5±59.22 microns. Both were comparable to each other and significantly higher than the C, I and SYS groups (p<0.001). All ETDRS sub-fields showed significant AUROC to distinguish NIA from I. Most significant Youden index was for the inner nasal and central ETDRS subfields (0.55 and 0.61 respectively). Inner nasal sub-field showed 100% specificity while the central sub-field, showed 86.5% for predicting NIA. At a choroidal thickness of >266 microns, the central sub-field had the strongest discriminatory potential to predict NIA. Conclusion Choroidal thickness is greater in active and non-inflammatory active TED. The inner nasal and central ETDRS sub-fields have value in differentiating the non-inflammatory active TED eyes from the inactive eyes.
Collapse
Affiliation(s)
- Tarjani V Dave
- Oculoplastic Surgery, LV Prasad Eye Institute, Hyderabad, IND
| | - Ramya Natarajan
- Ophthalmic Biophysics, LV Prasad Eye Institute, Hyderabad, IND
| | - Rakshi Ugandhar Reddy
- Smt. Kanuri Santhamma Center for Vitreoretinal Diseases, LV Prasad Eye Institute, Hyderabad, IND
| | - Anasua G Kapoor
- Ophthalmic Plastic Surgery and Ocular Oncology Services, LV Prasad Eye Institute, Vijayawada, IND
| | - Vivek P Dave
- Smt. Kanuri Santhamma Center for Vitreoretinal Diseases, LV Prasad Eye Institute, Hyderabad, IND
| |
Collapse
|
14
|
Parameswarappa DC, Das AV, Dave VP, Agarwal K, Natarajan R, Jalali S. Clinical Presentation and Demographic Distribution of Retinitis Pigmentosa in India and Implications for Potential Treatments: Electronic Medical Records Driven Big Data Analytics: Report I. Semin Ophthalmol 2021; 37:284-290. [PMID: 34404308 DOI: 10.1080/08820538.2021.1957126] [Citation(s) in RCA: 1] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AimTo describe the clinical presentation and demographic distribution of retinitis pigmentosa in patients presenting to a multi-tier ophthalmology hospital network in India and implications for potential treatments.DesignCross-sectional hospital-based study.MethodsThis study included 2,541,810 patients presenting between March 2012 and October 2020. Patients with a clinical diagnosis of retinitis pigmentosa in at least one eye were included as cases. The data were collected using an electronic medical record system.ResultsOverall, 15,062 (0.59%) new patients were diagnosed with retinitis pigmentosa and were included for analysis. The median age was 35 (IQR: 21-49) years and adult age (84.56%) presented more often. The most common presenting age group was between 21 and 30 years (20%). Majority of patients were male (61.68%) and had bilateral (96.39%) affliction. There was a family history in a tenth of the patients (10.46%) and a history of consanguinity in a minority (5.53%). The majority of the eyes had mild or no central visual acuity impairment of <20/70 (34.25%) followed by blindness <20/400 to 20/1200 (21.26%). The predominant retinal signs included disc pallor (76.43%), attenuated arterioles (82.61%) and bony spicule pigmentation (90.15%), and almost all had retinal pigmentary changes. A minority of the eyes underwent a surgical procedure (4.96%).ConclusionRetinitis pigmentosa is commonly bilateral and predominantly affects males. Most patients present in the third decade of life with severe visual acuity impairment. More than half of the eyes from our study are potential candidates for newer therapies. These results have implications for upcoming treatment choices and planning.
Collapse
Affiliation(s)
- Deepika C Parameswarappa
- Srimati Kanuri Santhamma Center for Vitreo - Retinal Diseases, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Anthony Vipin Das
- Department of eyeSmart EMR & AEye, LV Prasad Eye Institute, Hyderabad, India
| | - Vivek Pravin Dave
- Srimati Kanuri Santhamma Center for Vitreo - Retinal Diseases, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Komal Agarwal
- Srimati Kanuri Santhamma Center for Vitreo - Retinal Diseases, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Ramya Natarajan
- Department of Ophthalmic Biophysics, Kallam Anji Reddy Campus, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Subhadra Jalali
- Srimati Kanuri Santhamma Center for Vitreo - Retinal Diseases, L V Prasad Eye Institute, Hyderabad, Telangana, India
| |
Collapse
|
15
|
Samara YN, Brennan HM, McCarthy L, Bollard MT, Laspina D, Wlodek JM, Campos SL, Natarajan R, Gofron K, McSweeney S, Soares AS, Leroy L. Using sound pulses to solve the crystal harvesting bottleneck. Acta Crystallogr A Found Adv 2021. [DOI: 10.1107/s0108767321091297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
16
|
Natarajan R, Eapen A, Jambulingam P. Heizmannia rajagopalani n. sp. (Diptera: Culicidae) in Kerala, India, a species previously misidentified as Hz. metallica (Leicester). Zootaxa 2020; 4722:zootaxa.4722.5.5. [PMID: 32230607 DOI: 10.11646/zootaxa.4722.5.5] [Citation(s) in RCA: 1] [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: 01/16/2020] [Indexed: 11/04/2022]
Abstract
The original description of Heizmannia (Heizmannia) metallica (Leicester) from Malaysia, and specimens collected in India that were provisionally identified as Hz. metallica, were re-examined for their taxonomic status. Heizmannia metallica from Malaysia was found by Mattingly (1970) to be a junior synonym of Hz. indica (Theobald), whereas we found the specimens identified as Hz. metallica from India to differ distinctly from the holotype of Hz. metallica. We collected adults near Malabar Coast, Western Ghats which corresponded with Indian Hz. metallica sensu auctorum and here describe the previously misidentified species as Hz. (Hez.) rajagopalani n. sp. The adult male and female of the new species, and their genitalia, are described and illustrated.
Collapse
Affiliation(s)
- R Natarajan
- Indian Council of Medical Research (ICMR), Vector Control Research Centre, Indra Nagar, Puducherry, 605 006, India.
| | | | | |
Collapse
|
17
|
Natarajan R. Description of a new species of the genus Paraedes (Diptera: Culicidae) in Assam, India. Zootaxa 2019; 4691:zootaxa.4691.3.9. [PMID: 31719397 DOI: 10.11646/zootaxa.4691.3.9] [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: 10/30/2019] [Indexed: 11/04/2022]
Abstract
A new species, Paraedes jambulingami, is described from Assam, northeastern India. The adult male and female are described in detail and an illustration of the male is provided. This species is easily distinguished from all known species of the genus Paraedes by the presence of broad silvery or golden scales on the paratergite and the outer arm of the basal mesal lobe of the male genitalia bearing a long, flattened blade-like seta. Dichotomous keys are provided for the identification of the adult females and males of the five species of the genus that are known to occur in India.
Collapse
Affiliation(s)
- R Natarajan
- Indian Council of Medical Research -Vector Control Research Centre, Indra Nagar, Puducherry, 605 006, India..
| |
Collapse
|
18
|
Landers G, Townsend C, Gaspary M, Henao J, Kachur R, Thorne B, Natarajan R, Osit A, Bobac M, Zarow G. 17 Efficacy of Four Hemostatic Dressings for Prolonged Field Care in a Swine Model of Junctional Hemorrhagic Injury. Ann Emerg Med 2019. [DOI: 10.1016/j.annemergmed.2019.08.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
19
|
Natarajan R, Eapen A, Jambulingam P. Description of the adult male, larva and pupa of Topomyia (Topomyia) aureoventer (Diptera: Culicidae) in India. Zootaxa 2019; 4586:zootaxa.4586.2.10. [PMID: 31716136 DOI: 10.11646/zootaxa.4586.2.10] [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: 04/16/2019] [Indexed: 11/04/2022]
Abstract
The original description of Topomyia aureoventer by Theobald (1910) included only the adult female. Description of the adult male, pupa and larva, with figures of the male genitalia, pupa and larva, are provided. The larva is predacious with well-developed mandibles and inhabits leaf axils of Colocasia plants.
Collapse
Affiliation(s)
- R Natarajan
- Vector Control Research Centre, Indian Council of Medical Research (ICMR), Indra Nagar, Puducherry, 605 006, India..
| | | | | |
Collapse
|
20
|
Totadri S, Sundersingh S, Natarajan R, Seshadri RA, Radhakrishnan V. Gastrointestinal mucormycosis in a child with acute lymphoblastic leukemia: An uncommon but ominous complication. Indian J Cancer 2019; 55:304-305. [PMID: 30693900 DOI: 10.4103/ijc.ijc_260_18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Invasive fungal infections constitute a major cause of morbidity and mortality in children undergoing therapy for hematological malignancies. We report a 1-year-old boy who was receiving chemotherapy for acute lymphoblastic leukemia. His clinical course was complicated by a clinical syndrome consistent with neutropenic enterocolitis to which he succumbed. Histopathology of the surgically resected bowel revealed evidence of mucormycosis. Gastrointestinal mucormycosis is an unusual presentation which requires high degree of clinical suspicion and aggressive management.
Collapse
Affiliation(s)
- Sidharth Totadri
- Department of Medical Oncology, Cancer Institute (WIA), Chennai, Tamil Nadu, India
| | - Shirley Sundersingh
- Department of Oncopathology, Cancer Institute (WIA), Chennai, Tamil Nadu, India
| | - Ramya Natarajan
- Department of Oncopathology, Cancer Institute (WIA), Chennai, Tamil Nadu, India
| | | | | |
Collapse
|
21
|
Samara YN, Brennan HM, McCarthy L, Bollard MT, Laspina D, Wlodek JM, Campos SL, Natarajan R, Gofron K, McSweeney S, Soares AS, Leroy L. Using sound pulses to solve the crystal-harvesting bottleneck. Acta Crystallogr D Struct Biol 2018; 74:986-999. [PMID: 30289409 PMCID: PMC6173054 DOI: 10.1107/s2059798318011506] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 08/14/2018] [Indexed: 01/16/2023] Open
Abstract
Crystal harvesting has proven to be difficult to automate and remains the rate-limiting step for many structure-determination and high-throughput screening projects. This has resulted in crystals being prepared more rapidly than they can be harvested for X-ray data collection. Fourth-generation synchrotrons will support extraordinarily rapid rates of data acquisition, putting further pressure on the crystal-harvesting bottleneck. Here, a simple solution is reported in which crystals can be acoustically harvested from slightly modified MiTeGen In Situ-1 crystallization plates. This technique uses an acoustic pulse to eject each crystal out of its crystallization well, through a short air column and onto a micro-mesh (improving on previous work, which required separately grown crystals to be transferred before harvesting). Crystals can be individually harvested or can be serially combined with a chemical library such as a fragment library.
Collapse
Affiliation(s)
- Yasmin N. Samara
- Office of Educational Programs, Brookhaven National Laboratory, Upton, NY 11973-5000, USA
- Universidade Federal de Santa Maria, 97105-900 Santa Maria-RS, Brazil
| | - Haley M. Brennan
- Office of Educational Programs, Brookhaven National Laboratory, Upton, NY 11973-5000, USA
- Department of Biology, College of William and Mary, Williamsburg, VA 23187, USA
| | - Liam McCarthy
- Office of Educational Programs, Brookhaven National Laboratory, Upton, NY 11973-5000, USA
- Department of Biology, Stony Brook University, New York, NY 11794-5215, USA
| | - Mary T. Bollard
- Office of Educational Programs, Brookhaven National Laboratory, Upton, NY 11973-5000, USA
- Department of Biology, York College of Pennsylvania, York, PA 17403, USA
| | - Denise Laspina
- Office of Educational Programs, Brookhaven National Laboratory, Upton, NY 11973-5000, USA
- Department of Biology, Stony Brook University, New York, NY 11794-5215, USA
| | - Jakub M. Wlodek
- Office of Educational Programs, Brookhaven National Laboratory, Upton, NY 11973-5000, USA
- Department of Computer Science, Stony Brook University, New York, NY 11794-5215, USA
| | - Stefanie L. Campos
- Office of Educational Programs, Brookhaven National Laboratory, Upton, NY 11973-5000, USA
- Department of Clinical Nutrition, Stony Brook University, New York, NY 11794-5215, USA
| | - Ramya Natarajan
- Office of Educational Programs, Brookhaven National Laboratory, Upton, NY 11973-5000, USA
- Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Kazimierz Gofron
- Energy Sciences Directorate, NSLS II, Brookhaven National Laboratory, Upton, NY 11973-5000, USA
| | - Sean McSweeney
- Energy Sciences Directorate, NSLS II, Brookhaven National Laboratory, Upton, NY 11973-5000, USA
| | - Alexei S. Soares
- Energy Sciences Directorate, NSLS II, Brookhaven National Laboratory, Upton, NY 11973-5000, USA
| | - Ludmila Leroy
- Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte-MG, Brazil
| |
Collapse
|
22
|
Sulava E, Bianchi W, Krepela A, Kachur R, Roszko P, Manzano A, Zarow G, Gaspary M, Natarajan R, Auten J. 7 Performance of Single Versus Double Site Intraosseous Blood Transfusion Strategies in a Swine [Sus Scrofa] Model of Hemorrhagic Shock. Ann Emerg Med 2018. [DOI: 10.1016/j.annemergmed.2018.08.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
23
|
Natarajan R, Rajavel AR, Jambulingam P. Uranotaenia pseudostricklandi, a new species in subgenus Pseudoficalbia (Diptera: Culicidae) from Kerala, India. Zootaxa 2018; 4429:181-188. [PMID: 30313288 DOI: 10.11646/zootaxa.4429.1.11] [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] [Received: 06/05/2018] [Indexed: 11/04/2022]
Abstract
The female and male adults, male genitalia, pupa and larva of Uranotaenia (Pseudoficalbia) pseudostricklandi sp. nov. (Diptera: Culicidae) are described from specimens collected in India.
Collapse
Affiliation(s)
- R Natarajan
- Vector Control Research Centre (ICMR), India nagar, Puducherry 605 006, India..
| | | | | |
Collapse
|
24
|
Praveen K, Abinandan S, Natarajan R, Kavitha MS. BIOCHEMICAL RESPONSES FROM BIOMASS OF ISOLATED Chlorella sp., UNDER DIFFERENT CULTIVATION MODES: NON-LINEAR MODELLING OF GROWTH KINETICS. Braz J Chem Eng 2018. [DOI: 10.1590/0104-6632.20180352s20170188] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Affiliation(s)
- K Praveen
- VIT University, India; VIT University, India
| | - S Abinandan
- VIT University, India; VIT University, India
| | - R Natarajan
- VIT University, India; VIT University, India
| | | |
Collapse
|
25
|
Tang WW, McGee P, Lachin JM, Li DY, Hoogwerf B, Hazen SL, Nathan D, Zinman B, Crofford O, Genuth S, Brown‐Friday J, Crandall J, Engel H, Engel S, Martinez H, Phillips M, Reid M, Shamoon H, Sheindlin J, Gubitosi‐Klug R, Mayer L, Pendegast S, Zegarra H, Miller D, Singerman L, Smith‐Brewer S, Novak M, Quin J, Genuth S, Palmert M, Brown E, McConnell J, Pugsley P, Crawford P, Dahms W, Gregory N, Lackaye M, Kiss S, Chan R, Orlin A, Rubin M, Brillon D, Reppucci V, Lee T, Heinemann M, Chang S, Levy B, Jovanovic L, Richardson M, Bosco B, Dwoskin A, Hanna R, Barron S, Campbell R, Bhan A, Kruger D, Jones J, Edwards P, Bhan A, Carey J, Angus E, Thomas A, Galprin A, McLellan M, Whitehouse F, Bergenstal R, Johnson M, Gunyou K, Thomas L, Laechelt J, Hollander P, Spencer M, Kendall D, Cuddihy R, Callahan P, List S, Gott J, Rude N, Olson B, Franz M, Castle G, Birk R, Nelson J, Freking D, Gill L, Mestrezat W, Etzwiler D, Morgan K, Aiello L, Golden E, Arrigg P, Asuquo V, Beaser R, Bestourous L, Cavallerano J, Cavicchi R, Ganda O, Hamdy O, Kirby R, Murtha T, Schlossman D, Shah S, Sharuk G, Silva P, Silver P, Stockman M, Sun J, Weimann E, Wolpert H, Aiello L, Jacobson A, Rand L, Rosenzwieg J, Nathan D, Larkin M, Christofi M, Folino K, Godine J, Lou P, Stevens C, Anderson E, Bode H, Brink S, Cornish C, Cros D, Delahanty L, eManbey ., Haggan C, Lynch J, McKitrick C, Norman D, Moore D, Ong M, Taylor C, Zimbler D, Crowell S, Fritz S, Hansen K, Gauthier‐Kelly C, Service F, Ziegler G, Barkmeier A, Schmidt L, French B, Woodwick R, Rizza R, Schwenk W, Haymond M, Pach J, Mortenson J, Zimmerman B, Lucas A, Colligan R, Luttrell L, Lopes‐Virella M, Caulder S, Pittman C, Patel N, Lee K, Nutaitis M, Fernandes J, Hermayer K, Kwon S, Blevins A, Parker J, Colwell J, Lee D, Soule J, Lindsey P, Bracey M, Farr A, Elsing S, Thompson T, Selby J, Lyons T, Yacoub‐Wasef S, Szpiech M, Wood D, Mayfield R, Molitch M, Adelman D, Colson S, Jampol L, Lyon A, Gill M, Strugula Z, Kaminski L, Mirza R, Simjanoski E, Ryan D, Johnson C, Wallia A, Ajroud‐Driss S, Astelford P, Leloudes N, Degillio A, Schaefer B, Mudaliar S, Lorenzi G, Goldbaum M, Jones K, Prince M, Swenson M, Grant I, Reed R, Lyon R, Kolterman O, Giotta M, Clark T, Friedenberg G, Sivitz W, Vittetoe B, Kramer J, Bayless M, Zeitler R, Schrott H, Olson N, Snetselaar L, Hoffman R, MacIndoe J, Weingeist T, Fountain C, Miller R, Johnsonbaugh S, Patronas M, Carney M, Mendley S, Salemi P, Liss R, Hebdon M, Counts D, Donner T, Gordon J, Hemady R, Kowarski A, Ostrowski D, Steidl S, Jones B, Herman W, Martin C, Pop‐Busui R, Greene D, Stevens M, Burkhart N, Sandford T, Floyd J, Bantle J, Flaherty N, Terry J, Koozekanani D, Montezuma S, Wimmergren N, Rogness B, Mech M, Strand T, Olson J, McKenzie L, Kwong C, Goetz F, Warhol R, Hainsworth D, Goldstein D, Hitt S, Giangiacomo J, Schade D, Canady J, Burge M, Das A, Avery R, Ketai L, Chapin J, Schluter M, Rich J, Johannes C, Hornbeck D, Schutta M, Bourne P, Brucker A, Braunstein S, Schwartz S, Maschak‐Carey B, Baker L, Orchard T, Cimino L, Songer T, Doft B, Olson S, Becker D, Rubinstein D, Bergren R, Fruit J, Hyre R, Palmer C, Silvers N, Lobes L, Rath PP, Conrad P, Yalamanchi S, Wesche J, Bratkowksi M, Arslanian S, Rinkoff J, Warnicki J, Curtin D, Steinberg D, Vagstad G, Harris R, Steranchak L, Arch J, Kelly K, Ostrosaka P, Guiliani M, Good M, Williams T, Olsen K, Campbell A, Shipe C, Conwit R, Finegold D, Zaucha M, Drash A, Morrison A, Malone J, Bernal M, Pavan P, Grove N, Tanaka E, McMillan D, Vaccaro‐Kish J, Babbione L, Solc H, DeClue T, Dagogo‐Jack S, Wigley C, Ricks H, Kitabchi A, Chaum E, Murphy M, Moser S, Meyer D, Iannacone A, Yoser S, Bryer‐Ash M, Schussler S, Lambeth H, Raskin P, Strowig S, Basco M, Cercone S, Zinman B, Barnie A, Devenyi R, Mandelcorn M, Brent M, Rogers S, Gordon A, Bakshi N, Perkins B, Tuason L, Perdikaris F, Ehrlich R, Daneman D, Perlman K, Ferguson S, Palmer J, Fahlstrom R, de Boer I, Kinyoun J, Van Ottingham L, Catton S, Ginsberg J, McDonald C, Harth J, Driscoll M, Sheidow T, Mahon J, Canny C, Nicolle D, Colby P, Dupre J, Hramiak I, Rodger N, Jenner M, Smith T, Brown W, May M, Lipps Hagan J, Agarwal A, Adkins T, Lorenz R, Feman S, Survant L, White N, Levandoski L, Grand G, Thomas M, Joseph D, Blinder K, Shah G, Burgess D, Boniuk I, Santiago J, Tamborlane W, Gatcomb P, Stoessel K, Ramos P, Fong K, Ossorio P, Ahern J, Gubitosi‐Klug R, Meadema‐Mayer L, Beck C, Farrell K, Genuth S, Quin J, Gaston P, Palmert M, Trail R, Dahms W, Lachin J, Backlund J, Bebu I, Braffett B, Diminick L, Gao X, Hsu W, Klumpp K, Pan H, Trapani V, Cleary P, McGee P, Sun W, Villavicencio S, Anderson K, Dews L, Younes N, Rutledge B, Chan K, Rosenberg D, Petty B, Determan A, Kenny D, Williams C, Cowie C, Siebert C, Steffes M, Arends V, Bucksa J, Nowicki M, Chavers B, O'Leary D, Polak J, Harrington A, Funk L, Crow R, Gloeb B, Thomas S, O'Donnell C, Soliman E, Zhang Z, Li Y, Campbell C, Keasler L, Hensley S, Hu J, Barr M, Taylor T, Prineas R, Feldman E, Albers J, Low P, Sommer C, Nickander K, Speigelberg T, Pfiefer M, Schumer M, Moran M, Farquhar J, Ryan C, Sandstrom D, Williams T, Geckle M, Cupelli E, Thoma F, Burzuk B, Woodfill T, Danis R, Blodi B, Lawrence D, Wabers H, Gangaputra S, Neill S, Burger M, Dingledine J, Gama V, Sussman R, Davis M, Hubbard L, Budoff M, Darabian S, Rezaeian P, Wong N, Fox M, Oudiz R, Kim L, Detrano R, Cruickshanks K, Dalton D, Bainbridge K, Lima J, Bluemke D, Turkbey E, der Geest ., Liu C, Malayeri A, Jain A, Miao C, Chahal H, Jarboe R, Nathan D, Monnier V, Sell D, Strauch C, Hazen S, Pratt A, Tang W, Brunzell J, Purnell J, Natarajan R, Miao F, Zhang L, Chen Z, Paterson A, Boright A, Bull S, Sun L, Scherer S, Lopes‐Virella M, Lyons T, Jenkins A, Klein R, Virella G, Jaffa A, Carter R, Stoner J, Garvey W, Lackland D, Brabham M, McGee D, Zheng D, Mayfield R, Maynard J, Wessells H, Sarma A, Jacobson A, Dunn R, Holt S, Hotaling J, Kim C, Clemens Q, Brown J, McVary K. Oxidative Stress and Cardiovascular Risk in Type 1 Diabetes Mellitus: Insights From the DCCT/EDIC Study. J Am Heart Assoc 2018. [PMCID: PMC6015340 DOI: 10.1161/jaha.117.008368] [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] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background
Hyperglycemia leading to increased oxidative stress is implicated in the increased risk for the development of macrovascular and microvascular complications in patients with type 1 diabetes mellitus.
Methods and Results
A random subcohort of 349 participants was selected from the
DCCT
/
EDIC
(Diabetes Control and Complications Trial/Epidemiology of Diabetes Interventions and Complications) cohort. This included 320 controls and 29 cardiovascular disease cases that were augmented with 98 additional known cases to yield a case cohort of 447 participants (320 controls, 127 cases). Biosamples from
DCCT
baseline, year 1, and closeout of
DCCT
, and 1 to 2 years post‐
DCCT
(
EDIC
years 1 and 2) were measured for markers of oxidative stress, including plasma myeloperoxidase, paraoxonase activity, urinary F
2α
isoprostanes, and its metabolite, 2,3 dinor‐8
iso
prostaglandin F
2α
. Following adjustment for glycated hemoblobin and weighting the observations inversely proportional to the sampling selection probabilities, higher paraoxonase activity, reflective of antioxidant activity, and 2,3 dinor‐8
iso
prostaglandin F
2α
, an oxidative marker, were significantly associated with lower risk of cardiovascular disease (−4.5% risk for 10% higher paraoxonase,
P
<0.003; −5.3% risk for 10% higher 2,3 dinor‐8
iso
prostaglandin F
2α
,
P
=0.0092). In contrast, the oxidative markers myeloperoxidase and F
2α
isoprostanes were not significantly associated with cardiovascular disease after adjustment for glycated hemoblobin. There were no significant differences between
DCCT
intensive and conventional treatment groups in the change in all biomarkers across time segments.
Conclusions
Heightened antioxidant activity (rather than diminished oxidative stress markers) is associated with lower cardiovascular disease risk in type 1 diabetes mellitus, but these biomarkers did not change over time with intensification of glycemic control.
Clinical Trial Registration
URL
:
https://www.clinicaltrials.gov
. Unique identifiers:
NCT
00360815 and
NCT
00360893.
Collapse
Affiliation(s)
- W.H. Wilson Tang
- Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH
- Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH
| | - Paula McGee
- The Biostatistics Center, George Washington University, Rockville, MD
| | - John M. Lachin
- The Biostatistics Center, George Washington University, Rockville, MD
| | - Daniel Y. Li
- Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH
| | | | - Stanley L. Hazen
- Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH
- Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
26
|
Abstract
The first case of bilateral distal tibiofibular joint fusions for osteochondromas is reported with excellent long-term outcomes.
Collapse
Affiliation(s)
- W J Ribbans
- The University of Northampton, Northampton NN2 7AL, UK
| | - J Chadwick
- Northampton General Hospital, Northampton NN1 5BD, UK
| | - R Natarajan
- Northampton General Hospital, Northampton NN1 5BD, UK
| |
Collapse
|
27
|
Affiliation(s)
- U. Kamachi Mudali
- Indira Gandhi Centre for Atomic Research, Reprocessing Group and Corrosion Science and Technology Group, Kalpakkam – 603 102, India
| | - A. Ravi Shankar
- Indira Gandhi Centre for Atomic Research, Reprocessing Group and Corrosion Science and Technology Group, Kalpakkam – 603 102, India
| | - R. Natarajan
- Indira Gandhi Centre for Atomic Research, Reprocessing Group and Corrosion Science and Technology Group, Kalpakkam – 603 102, India
| | | | - Baldev Raj
- Indira Gandhi Centre for Atomic Research, Reprocessing Group and Corrosion Science and Technology Group, Kalpakkam – 603 102, India
| |
Collapse
|
28
|
Natarajan R, Rajavel AR, Jambulingam P. Descriptions of three new species of <i>Uranotaenia</i> (Pseudoficalbia) Diptera: Culicidae) from India. Zootaxa 2017; 4227:zootaxa.4227.2.6. [PMID: 28187586 DOI: 10.11646/zootaxa.4227.2.6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Indexed: 11/04/2022]
Abstract
Female and male adults, male genitalia, pupa and larva of Uranotaenia (Pseudoficalbia) maikalensis, Ur. (Pfc.) dandakaranyensis and Ur. (Pfc.) satpuraensis, three new mosquito species, are described from India.
Collapse
Affiliation(s)
- R Natarajan
- Vector Control Research Centre, (ICMR), 605 006, Puducherry, India..
| | | | | |
Collapse
|
29
|
Natarajan R, Rajavel AR, Jambulingam P. Description of a new species of the genus Hulecoeteomyia (Diptera: Culicidae) from Meghalaya, India. Zootaxa 2016; 4137:330-8. [PMID: 27470727 DOI: 10.11646/zootaxa.4137.3.2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Indexed: 11/04/2022]
Abstract
Female and male adults, female and male genitalia, pupa and larva of Hulecoeteomyia cherrapunjiensis, a new mosquito species, are described from Meghalaya, India. Keys to separate larvae and adults are provided.
Collapse
Affiliation(s)
- R Natarajan
- Vector Control Research Centre (ICMR), Indira nagar, Puducherry 605 006, India.;
| | - A R Rajavel
- Vector Control Research Centre (ICMR), Indira nagar, Puducherry 605 006, India.;
| | - P Jambulingam
- Vector Control Research Centre (ICMR), Indira nagar, Puducherry 605 006, India.;
| |
Collapse
|
30
|
Ibrahim N, Mangwani J, Natarajan R, Mahadevan D, Chauhan I, Groom W, Rudd J. An internal audit on EXOGEN use in the East Midlands. Int J Surg 2015. [DOI: 10.1016/j.ijsu.2015.07.390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
31
|
Rajavel AR, Kumar NP, Natarajan R, Vanamail P, Rathinakumar A, Jambulingam P. Morphological and molecular characterization of the ecological, biological and behavioural variants of the JE vector Culex tritaeniorhynchus: an assessment of its taxonomic status. J Vector Borne Dis 2015; 52:40-51. [PMID: 25815866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023] Open
Abstract
BACKGROUND & OBJECTIVES Culex tritaeniorhynchus (Diptera: Culicidae), an important vector of Japanese encephalitis belongs to the Culex vishnui subgroup which includes two other vector species namely, Cx. Vishnui and Cx. pseudovishnui. Many varieties and types of Cx. tritaeniorhynchus have been reported, besides populations that exhibit behavioural and biological differences. This study was undertaken to find out whether Cx. tritaeniorhynchus populations exhibiting behavioural and biological variations, and those from different geographical areas, are comprised of more than one taxon or belong to a single taxon. METHODS Morphological characterization was done by examining 153 morphological and morphometric characters in the larval (75), pupal (60) and adult stages (18) of five geographical populations of Cx. tritaeniorhynchus. Molecular characterization was done by PCR amplification of mitochondrial cytochrome c oxidase (COI) gene sequences (DNA barcodes) and another hypervariable genetic marker, the ribosomal DNA (16S). One-way ANOVA, principal component analysis (PCA) and discriminant factor analysis (DFA) were done for statistical analyses using the statistical package SPSS IBM version 19.0. RESULTS Morphological characterization showed that no intraspecific differentiation can be made among the five geographical populations of Cx. tritaeniorhynchus. Molecular characterization done by DNA barcoding also showed that the COI sequences of all the five populations of Cx. tritaeniorhynchus grouped into a single taxonomic clade plus the genetic differentiation among these was non-significant and the overall gene flow among the populations was very high. Analysis of the ribosomal DNA also confirmed that the Cx. tritaeniorhynchus populations belonged to a single taxon. INTERPRETATION & CONCLUSION Culex tritaeniorhynchus is a taxon that does not involve cryptic species.
Collapse
Affiliation(s)
- A R Rajavel
- Vector Control Research Centre (ICMR), Indira Nagar, Puducherry, India
| | | | | | | | | | | |
Collapse
|
32
|
Mishra S, Mallika C, Pandey NK, Kamachi Mudali U, Natarajan R. Effect of Radiolysis in Altering the Physiochemical and Metal Retention Properties of Solvent-Diluent-Acid Systems. SEP SCI TECHNOL 2015. [DOI: 10.1080/01496395.2014.988359] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
33
|
Balasubramonian S, Srivastav RK, Kumar S, Sivakumar D, Sampath M, Kamachi Mudali U, Natarajan R. Flash point prediction for the binary mixture of phosphatic solvents and n-dodecane from UNIFAC group contribution model. J Loss Prev Process Ind 2015. [DOI: 10.1016/j.jlp.2014.12.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
34
|
Mishra S, Ganesh S, Velavendan P, Pandey NK, Mallika C, Kamachi Mudali U, Natarajan R. Effects of temperature, concentration of acid and metal ions on the solubility of tri-n-butyl phosphate in aqueous phase. J Radioanal Nucl Chem 2015. [DOI: 10.1007/s10967-014-3351-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
35
|
Gelatar JK, Kumar B, Sampath M, Kumar S, Kamachi Mudali U, Natarajan R. Dissolution of intact UO2 pellet in batch and rotary dissolver conditions. J Radioanal Nucl Chem 2014. [DOI: 10.1007/s10967-014-3683-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
36
|
Chen X, Zhang L, Zhang I, Liang J, Weng L, Yamamoto Y, Yamamoto H, Natarajan R, Badie B. IB-04 * EXPRESSION OF RAGE BY TUMOR MACROPHAGES PROMOTES ANGIOGENESIS IN GLIOMAS. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou257.4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
37
|
Ganesh S, Velavendan P, Pandey NK, Kamachi Mudali U, Natarajan R. Estimation of free acidity in some hydrolysable metal ions present in reprocessing streams by fiber optic aided spectrophotometry. J Radioanal Nucl Chem 2014. [DOI: 10.1007/s10967-014-3658-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
38
|
Swain P, Annapoorani S, Srinivasan R, Mallika C, Kamachi Mudali U, Natarajan R. Separation and recovery of ruthenium from nitric acid medium by electro-oxidation. J Radioanal Nucl Chem 2014. [DOI: 10.1007/s10967-014-3638-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
39
|
Natarajan R, Ang WMR, Chen X, Voigtmann M, Lau R. Lipid releasing characteristics of microalgae species through continuous ultrasonication. Bioresour Technol 2014; 158:7-11. [PMID: 24583912 DOI: 10.1016/j.biortech.2014.01.146] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [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: 12/13/2013] [Revised: 01/23/2014] [Accepted: 01/27/2014] [Indexed: 05/24/2023]
Abstract
In this study, the lipid releasing characteristics of several microalgae species through continuous ultrasonication was examined. Two marine microalgae species, Tetraselmis suecica and Nannochloropsis sp., and one freshwater species, Chlorella sp. were ultrasonicated directly after cultivation. The cell disruption efficiency and lipids releasing pattern from microalgae cells were measured under various ultrasonication conditions. It was found that cell disruption efficiency correlates well with ultrasonication energy consumption despite the ultrasonication conditions. Lipids in Chlorella sp. that has rigid cell walls were released to the aqueous phase after cell disruption. T. suecica and Nannochloropsis sp. that have flexible cell membranes tend to coil up and retain the membrane lipids after disruption. Continuous ultrasonication can be a potential method to release the lipids in rigid walled microalgae species without expensive dewatering steps.
Collapse
Affiliation(s)
- Ramya Natarajan
- Energy Research Institute, Nanyang Technological University, 1 CleanTech Loop #06-04, Singapore 637141, Singapore
| | - Wei Ming Russell Ang
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore
| | - Xue Chen
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore
| | - Michael Voigtmann
- Wintershine (Asia) Pte Ltd, 13A Teo Hong Road, Singapore 088327, Singapore
| | - Raymond Lau
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore.
| |
Collapse
|
40
|
Sukumar S, Subba Rao RV, Natarajan R. Improved Preparation of Acetohydroxamic Acid. ORG PREP PROCED INT 2014. [DOI: 10.1080/00304948.2014.866477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
41
|
Swain P, Annapoorani S, Srinivasan R, Mallika C, Mudali UK, Natarajan R. Separation of Ruthenium from Simulated Nuclear Waste in Nitric Acid Medium using n-Paraffin Hydrocarbon. SEP SCI TECHNOL 2013. [DOI: 10.1080/01496395.2013.815629] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
42
|
Natarajan R, Dhamodharan K, Sharma PK, Pugazhendi S, Vijayakumar V, Pandey NK, Rao RVS. Optimization of Flowsheet for Scrubbing of Ruthenium during the Reprocessing of Fast Reactor Spent Fuels. SEP SCI TECHNOL 2013. [DOI: 10.1080/01496395.2013.807828] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
43
|
Priyadarshini N, Sampath M, Kumar S, Mudali UK, Natarajan R. A combined spectroscopic and light scattering study of hydrolysis of uranium(VI) leading to colloid formation in aqueous solutions. J Radioanal Nucl Chem 2013. [DOI: 10.1007/s10967-013-2624-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
44
|
Song KH, Park J, Park JH, Natarajan R, Ha H. Fractalkine and its receptor mediate extracellular matrix accumulation in diabetic nephropathy in mice. Diabetologia 2013; 56:1661-9. [PMID: 23604552 PMCID: PMC4737593 DOI: 10.1007/s00125-013-2907-z] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Accepted: 03/13/2013] [Indexed: 11/27/2022]
Abstract
AIMS/HYPOTHESIS Fractalkine (FKN) is a unique chemokine that works as a chemoattractant and an adhesion molecule. Previous studies have demonstrated that FKN plays a role in ischaemic and protein-overload renal injury via its cognate receptor chemokine (C-X3-C motif) receptor 1 (CX3CR1). However, involvement of the FKN/CX3CR1 system in diabetic nephropathy remains unclear. We examined the role of FKN/CX3CR1 in diabetic mice and mouse mesangial cells (MMCs). METHODS Streptozotocin (50 mg kg(-1) day(-1)) was intraperitoneally administered for 5 days to male Cx3cr1-knockout (KO) mice and wild-type (WT) mice. MMCs transfected with Fkn (also known as Cx3cl1) or Cx3cr1 siRNA, respectively, were used to elucidate the role of FKN/CX3CR1 in extracellular matrix (ECM) synthesis. RESULTS At 12 weeks, diabetic Cx3cr1 KO mice showed no significant changes in plasma glucose, but markers of renal inflammation, fibrosis and ECM, such as the fractional mesangial area, fibronectin and collagen, were significantly lower in diabetic Cx3cr1 KO mice compared with diabetic WT mice. High glucose, oleic acid and TGF-β1 stimulated FKN and CX3CR1 expression, together with the expression of ECM proteins in MMCs, but the effects were significantly attenuated by Fkn or Cx3cr1 siRNA. More importantly, FKN itself increased mesangial ECM through CX3CR1 and subsequent activation of reactive oxygen species and mitogen-activated protein kinases. A neutralising TGF-β antibody inhibited FKN/CX3CR1 in MMCs treated with diabetic stimuli and decreased FKN-induced ECM accumulation. CONCLUSIONS/INTERPRETATION These results demonstrate that FKN/CX3CR1 may play an important role in diabetic renal injury through upregulation of ECM synthesis and could therefore be a therapeutic target for preventing diabetic nephropathy.
Collapse
Affiliation(s)
- K. H. Song
- Department of Bioinspired Science, Division of Life and Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 120-752, Korea
| | - J. Park
- Department of Bioinspired Science, Division of Life and Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 120-752, Korea
| | - J. H. Park
- Department of Bioinspired Science, Division of Life and Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 120-752, Korea
| | - R. Natarajan
- Department of Diabetes, Beckman Research, Institute of City of Hope, Duarte, CA, USA
| | - H. Ha
- Department of Bioinspired Science, Division of Life and Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 120-752, Korea
| |
Collapse
|
45
|
|
46
|
Patra J, Pandey NK, Muduli UK, Natarajan R, Joshi JB. HYDRODYNAMIC STUDY OF FLOW IN THE ROTOR REGION OF ANNULAR CENTRIFUGAL CONTACTORS USING CFD SIMULATION. CHEM ENG COMMUN 2013. [DOI: 10.1080/00986445.2012.706838] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
47
|
Sini K, Mishra S, Mallika C, Pandey NK, Srinivasan R, Kamachi Mudali U, Natarajan R. Kinetics and optimisation of process parameters for electrochemical generation of uranous ions in nitric acid–hydrazine media. J Radioanal Nucl Chem 2013. [DOI: 10.1007/s10967-013-2470-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
48
|
Ganesh S, Velavendan P, Pandey NK, Kamachi Mudali U, Natarajan R. Direct spectrophotometric determination of ruthenium in aqueous streams of nuclear reprocessing. J Radioanal Nucl Chem 2013. [DOI: 10.1007/s10967-012-2229-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
49
|
Dicholkar DD, Kumar P, Heer PK, Gaikar VG, Kumar S, Natarajan R. Synthesis of N,N,N′,N′-Tetraoctyl-3-oxapentane-1,5-diamide (TODGA) and Its Steam Thermolysis-Nitrolysis as a Nuclear Waste Solvent Minimization Method. Ind Eng Chem Res 2013. [DOI: 10.1021/ie302603q] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Deepak D. Dicholkar
- Chemical Engineering Department, Institute of Chemical Technology, Mumbai-400019, India
| | - Pradipta Kumar
- Chemical Engineering Department, Institute of Chemical Technology, Mumbai-400019, India
| | - Parminder Kaur Heer
- Chemical Engineering Department, Institute of Chemical Technology, Mumbai-400019, India
| | - Vilas G. Gaikar
- Chemical Engineering Department, Institute of Chemical Technology, Mumbai-400019, India
| | - Shekhar Kumar
- Process Development and Equipment Section, Reprocessing R & D Division, Reprocessing Group, Indira Gandhi Centre for Atomic Research, Kalpakkam-603102, India
| | - R. Natarajan
- Process Development and Equipment Section, Reprocessing R & D Division, Reprocessing Group, Indira Gandhi Centre for Atomic Research, Kalpakkam-603102, India
| |
Collapse
|
50
|
|