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Maharaj R, Sakpal SV, Deodhar K, Kulkarni A, Arya S, Ramadwar M, Shrikhande SV, Naraynsingh V, Shukla PJ. A cystic hepatic lesion: when to worry? W INDIAN MED J 2010; 59:226-229. [PMID: 21275132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A 16-year old female presented to hospital with abdominal pain. Features on computed tomography raised the possibility of biliary cystadenoma or cystadenocarcinoma. She underwent a liver resection, and histopathology confirmed a serous biliary cystadenoma. This case is presented to highlight the radiological features of this uncommon pre-malignant condition as well as to summarize a management algorithm for cystic liver lesions.
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Vamos-Hurwitz E, Arya S, Boggs TR, Nichols WW. Familial enlargement of the short arm of a small acrocentric chromosome. Hereditas 2009; 57:185-97. [PMID: 4229893 DOI: 10.1111/j.1601-5223.1967.tb02100.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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Wiedrich T, Keller D, Arya S, Gilbert E, Trigg M. Adverse Histopathologic Effects of Chemotherapeutic Agents in Childhood Leukemia and Lymphoma. ACTA ACUST UNITED AC 2009; 2:267-83. [PMID: 6542655 DOI: 10.3109/15513818409022260] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Pathologic material from 84 children with leukemia or lymphoma who died and were autopsied at the University of Wisconsin Hospital between 1967 and 1980 was reviewed to assess the adverse tissue changes due to the chemotherapy administered. In each case the histopathologic findings were correlated with the chemotherapy given. Individual drug dosage is administered (per m2) correlated with the adverse tissue findings at autopsy. Data presented suggest that the drug dose administered should be correlated not only with tumor response but also with tissue effects (some of which produce no noticeable, immediate, clinically apparent changes) to decrease the likelihood of producing irreversible tissue changes.
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Swami M, Mahajan K, Arya S, Mehla SK, Singh RV. Organoboron(III) and organolead(IV) complexes as antimicrobial and antimycobacterial agents: Synthetic, structural, and biological aspects. RUSS J COORD CHEM+ 2009. [DOI: 10.1134/s1070328409050108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Jennison T, Naqvi N, Arya S. CLINICALLY GUIDED ANGIOGRAPHY IN FEMALES IS AS USEFUL AS EXERCISE TESTING GUIDED ANGIOGRAPHY IN DIAGNOSING SIGNIFICANT CORONARY DISEASE. ATHEROSCLEROSIS SUPP 2008. [DOI: 10.1016/s1567-5688(08)70998-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Bashford GR, Tomsen N, Arya S, Burnfield JM, Kulig K. Tendinopathy discrimination by use of spatial frequency parameters in ultrasound B-mode images. IEEE TRANSACTIONS ON MEDICAL IMAGING 2008; 27:608-615. [PMID: 18450534 DOI: 10.1109/tmi.2007.912389] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The structural characteristics of a healthy tendon are related to the anisotropic speckle patterns observed in ultrasonic images. This speckle orientation is disrupted upon damage to the tendon structure as observed in patients with tendinopathy. Quantification of the structural appearance of tendon shows promise in creating a tool for diagnosing, prognosing, or measuring changes in tendon organization over time. The current work describes a first step taken towards this goal-classification of Achilles tendon images into tendinopathy and control categories. Eight spatial frequency parameters were extracted from regions of interest on tendon images, filtered and classified using linear discriminant analysis. Resulting algorithms had better than 80% accuracy in categorizing tendon image kernels as tendinopathy or control. Tendon images categorized wrongly provided for an interesting clinical association between incorrect classification of tendinopathy kernels as control and the symptom and clinical time history based inclusion criteria. To assess intersession reliability of image acquisition, the first 10 subjects were imaged twice during separate sessions. Test-retest of repeated measures was excellent (tau = 0.996, ICC = (2, 1) = 0.73 with one outlier) indicating a general consistency in imaging techniques.
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Arya S, Rao V, Juvekar S, Dcruz AK. Carotid body tumors: objective criteria to predict the Shamblin group on MR imaging. AJNR Am J Neuroradiol 2008; 29:1349-54. [PMID: 18417602 DOI: 10.3174/ajnr.a1092] [Citation(s) in RCA: 101] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE MR imaging is an established method for diagnosis and surgical planning of carotid body tumors (CBTs). However no studies have elaborated preoperative objective criteria to predict the Shamblin (surgical) classification of CBTs, an important predictor of vascular morbidity. The purpose of this study was to establish criteria to accurately predict the Shamblin group on preoperative MR imaging for a uniform reporting system. MATERIALS AND METHODS MR images of 9 CBTs in 8 consecutive patients who underwent surgery between 2004 and 2007 were reviewed at a tertiary cancer hospital. The surgical records were blinded to the radiologists. A radiologic classification into 3 types (I, II, and III) based on the maximum degree of circumferential contact of the tumor with the internal carotid artery (ICA) was attempted and correlated with the Shamblin group in surgical records. RESULTS There were 5 type III, 3 type II, and 1 type I tumors. The type I tumor had an ICA maximum circumference of contact less than or equal to 180 degrees , type II tumors had more than 180 degrees and less than 270 degrees , and type III tumors had a maximum circumference of contact of 270 degrees of more. MR imaging accurately predicted the Shamblin group in 8 (100%) of 8 operated tumors. Tumor size and Shamblin group did not have a uniformly predictable relation. CONCLUSIONS Shamblin group can be predicted preoperatively on MR imaging, and the maximum degree of circumferential contact of the CBT with the ICA on axial images is the criterion to predict the Shamblin group.
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Mahale N, Sarin R, Arya S. Prospective Study of Location and Daily Variation in the Position of Ovaries and its Impact on the Technique for Radiation Ovarian Ablation. Int J Radiat Oncol Biol Phys 2007. [DOI: 10.1016/j.ijrobp.2007.07.1228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Thete N, Rastogi D, Arya S, Singh A, Rao P, Chandge A, Ramadwar M. Primitive neuroectodermal tumour of the prostate gland: ultrasound and MRI findings. Br J Radiol 2007; 80:e180-3. [PMID: 17762052 DOI: 10.1259/bjr/57293350] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
We report a rare case of primitive neuroectodermal tumour (PNET) of the prostate occurring in a 26-year-old man with a mass replacing the prostate gland in the absence of any lesion involving the bone and soft tissues. To our knowledge, there is no radiological literature that has described the imaging findings in a case of PNET of the prostate. Imaging findings in cases of PNET of the kidney are described in the literature. On ultrasound, the mass appeared multilobulated and multinodular with intratumoural heterogeneity. No brightly reflective echoes with posterior acoustic shadowing to suggest calcification were noted. MRI revealed a heterogeneous lobulated mass with irregular septae within. The mass showed low signal intensity on T(1) weighted images and appeared heterogeneous on T(2) weighted images. Haemorrhage and necrosis were also seen in the tumour.
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Arya S, Kulig K. MECHANICAL PROPERTIES OF THE ACHILLES TENDON IN THE PRESENCE OF TENDINOSIS. J Biomech 2007. [DOI: 10.1016/s0021-9290(07)70717-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Solnik S, Arya S, Grzegorczyk K, Koziatek A, Bober T. EMG frequency during sustained submaximal isometric activity of biceps brachii: a linear model. J Biomech 2006. [DOI: 10.1016/s0021-9290(06)83286-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Arya S, Solnik S, Kulig K. Influence of achilles tendinopathy on lower extremity joint stiffness strategies during single-legged hopping. J Biomech 2006. [DOI: 10.1016/s0021-9290(06)85057-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Correa P, Arya S, Laskar SG, Shrivastava SK, Dinshaw KA, Gupta T, Agarwal JP. Ultrasonographic changes in malignant neck nodes during radiotherapy in head and neck squamous carcinoma. ACTA ACUST UNITED AC 2005; 49:113-8. [PMID: 15845046 DOI: 10.1111/j.1440-1673.2005.01357.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Limited information is available about the sonomorphological changes in metastatic neck nodes during radiotherapy. The aim of this study was to evaluate the pattern of sonomorphological changes in metastatic neck nodes with radiotherapy. The study population consisted of 16 consecutive patients planned for radical radiotherapy to the head and neck. All patients were subjected to four ultrasound examinations: before therapy, at 46 Gy, at the conclusion of radiation and at first follow up. A total of 59 ultrasound examinations were performed on 16 patients. The difference between the mean number of nodes detected per patient before (10.6) and after (7.8) radiation was significant (P = 0.05). Sixteen nodes were categorized as malignant at first sonography, half of which reverted back to normal by the end of radiation. Changes in the sonomorphology of malignant cervical lymph nodes occur with radiotherapy with more that half demonstrating reversion to normal pattern. Future studies correlating this with histopathology should be considered.
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Kumar VL, Sehgal R, Arya S. Inhibitory effect of extracts of latex of Calotropis procera against Candida albicans: A preliminary study. Indian J Pharmacol 2005. [DOI: 10.4103/0253-7613.16862] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Misra A, Vikram NK, Arya S, Pandey RM, Dhingra V, Chatterjee A, Dwivedi M, Sharma R, Luthra K, Guleria R, Talwar KK. High prevalence of insulin resistance in postpubertal Asian Indian children is associated with adverse truncal body fat patterning, abdominal adiposity and excess body fat. Int J Obes (Lond) 2004; 28:1217-26. [PMID: 15314636 DOI: 10.1038/sj.ijo.0802704] [Citation(s) in RCA: 119] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVE The objectives were to study the relationships of insulin resistance with generalized and abdominal obesity, and body fat patterning in urban postpubertal Asian Indian children. DESIGN Cross-sectional, population-based epidemiological study. SUBJECTS In all, 250 (155 males and 95 females) healthy urban postpubertal children. MEASUREMENTS Anthropometric profile, percentage of body fat (%BF), fasting serum insulin, and lipoprotein profile. RESULTS Fasting insulin correlated significantly with body mass index (BMI), %BF, waist circumference (WC), central and peripheral skinfold thicknesses and sum of four skinfold thicknesses (Sigma 4SF) in both sexes, and with systolic blood pressure and waist-to hip circumference ratio (W-HR) in males only. Consistent increase in fasting insulin was noted with increasing values of central skinfold thickness at each tertile of peripheral skinfold thickness, WC, and %BF. Central skinfold thickness correlated with fasting insulin even after adjusting for WC, W-HR, and %BF. The odds ratios (OR) (95% CI) of hyperinsulinemia (fasting insulin concentrations in the highest quartile) were 4.7 (2.4-9.4) in overweight subjects, 8 (4.1-15.5) with high %BF, 6.4 (3.2-12.9) with high WC, 3.7 (1.9-7.3) with high W-HR, 6.8 (3.3-13.9) with high triceps skinfold thickness, 8 (4.1-15.7) with high subscapular skinfold thickness, and 10.1 (5-20.5) with high Sigma 4SF. In step-wise multiple logistic regression analysis, %BF [OR (95% CI): 3.2 (1.4-7.8)] and Sigma 4SF [OR (95% CI): 4.5 (1.8-11.3)] were independent predictors of hyperinsulinemia, similar to insulin resistance assessed by HOMA (homeostatic model of assessment) in the study. CONCLUSION A high prevalence of insulin resistance in postpubertal urban Asian Indian children was associated with excess body fat, abdominal adiposity, and excess truncal subcutaneous fat. Primary prevention strategies for coronary heart disease and diabetes mellitus in Asian Indians should focus on the abnormal body composition profile in childhood.
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Arya S. Hepatitis B virus among Libyan health care workers. Saudi Med J 2001; 22:930. [PMID: 11744959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023] Open
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Arya S, Chellani H, Pandey J. Evaluation of safety of oral vitamin 'A' megadose co-administered with measles vaccination. Indian Pediatr 2000; 37:1341-7. [PMID: 11119336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
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Arya S, Kalia RK, Arya ID. Induction of somatic embryogenesis in Pinus roxburghii Sarg. PLANT CELL REPORTS 2000; 19:775-780. [PMID: 30754868 DOI: 10.1007/s002990000197] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Embryogenic calli were initiated from embryonic explants of Pinus roxburghii using female gametophytes containing immature pre-cotyledonary embryos. Zygotic embryos were collected at different developmental stages and cultured on various media. Initiation of embryogenic calli was achieved in pre-cotyledonary zygotic embryos of a 0.1-mm to 1.2-mm embryonal head on Douglus fir cotyledon revised medium (DCR) medium supplemented with 2,4-D or NAA and BA. Embryogenic callus development was initiated from the suspensor region of immature embryos. The method of immature embryo culture was significant as rapid embryogenic callus development occurred in megagametophytes where the suspensor was stretched onto the medium from the cut micropylar end. Sixty embryogenic lines were established from 2500 explants cultured during one season. A pro-embryo with six to eight meristematic cells and suspensor of six to ten long, vacuolated cells dominated the early phase of the callus development. Cleavage polyembryony occurred in proliferating callus, constituting a method of multiplication of these somatic embryos. Somatic embryos developed to stage-I and stage-II embryos on DCR medium supplemented with 5 μM 2,4-D or 10 μM NAA.
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Arya S, Nagarkatti DG, Dudhat SB, Nadkarni KS, Joshi MS, Shinde SR. Soft tissue sarcomas: ultrasonographic evaluation of local recurrences. Clin Radiol 2000; 55:193-7. [PMID: 10708612 DOI: 10.1053/crad.1999.0343] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE The diagnosis of early local recurrence of soft tissue sarcomas, especially in those treated with surgery and radiotherapy, is a difficult clinical problem. Financial constraints led us to use ultrasonography instead of CT or MR imaging. The aim of this study was to evaluate the role of ultrasonography (US) in detecting local recurrence. METHODS AND RESULTS Fifty patients with previous treatment for soft tissue sarcomas were evaluated prospectively for recurrence by US and histopathology. Seven of the 50 patients were clinically suspected to have recurrent tumour. Ultrasonography showed recurrence in 26, no recurrence in 18, benign disease in four and was indeterminate in two cases. Ultrasonography was instrumental in guiding fine needle aspiration biopsies of small local recurrences and indeterminate lesions in 17 patients. In the sonographically tumour positive patients, histopathology confirmed recurrence in 24; one case had benign disease and one patient refused surgery. Thirteen of the 18 sonographically tumour negative patients were operated upon; all were negative for tumour on histopathology. Both the indeterminate cases showed recurrence on histopathology. The benign cases were confirmed by histopathology correlation. Ultrasound guided fine needle aspiration cytology (FNAC) was positive in 14 out of 17 patients (88%). The sensitivity and specificity of US was 92.30% and 94.4% respectively. CONCLUSION Our study concludes that US is an extremely useful and cost effective method in the detection of early local recurrences of soft tissue sarcomas and should therefore be used for initial routine follow-up and guided biopsies.
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Charalambous CP, Malik R, Schofield I, Arya S, Heagerty AM. Aortic dissection with chronic haemopericardium. J R Soc Med 1999; 92:638-9. [PMID: 10692888 PMCID: PMC1297472 DOI: 10.1177/014107689909201210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Khatana VS, Arya S, Ilangantileke SG. Decline in sweet potato cultivation in India with special reference to the state of Bihar. ASIAN AGRI-HISTORY 1999; 3:93-110. [PMID: 21506444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
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Snow BE, Krumins AM, Brothers GM, Lee SF, Wall MA, Chung S, Mangion J, Arya S, Gilman AG, Siderovski DP. A G protein gamma subunit-like domain shared between RGS11 and other RGS proteins specifies binding to Gbeta5 subunits. Proc Natl Acad Sci U S A 1998; 95:13307-12. [PMID: 9789084 PMCID: PMC23793 DOI: 10.1073/pnas.95.22.13307] [Citation(s) in RCA: 227] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/04/1998] [Indexed: 11/18/2022] Open
Abstract
Regulators of G protein signaling (RGS) proteins act as GTPase-activating proteins (GAPs) toward the alpha subunits of heterotrimeric, signal-transducing G proteins. RGS11 contains a G protein gamma subunit-like (GGL) domain between its Dishevelled/Egl-10/Pleckstrin and RGS domains. GGL domains are also found in RGS6, RGS7, RGS9, and the Caenorhabditis elegans protein EGL-10. Coexpression of RGS11 with different Gbeta subunits reveals specific interaction between RGS11 and Gbeta5. The expression of mRNA for RGS11 and Gbeta5 in human tissues overlaps. The Gbeta5/RGS11 heterodimer acts as a GAP on Galphao, apparently selectively. RGS proteins that contain GGL domains appear to act as GAPs for Galpha proteins and form complexes with specific Gbeta subunits, adding to the combinatorial complexity of G protein-mediated signaling pathways.
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Jambhekar NA, Desai PB, Chitale DA, Patil P, Arya S. Benign metastasizing chondroblastoma: a case report. Cancer 1998; 82:675-8. [PMID: 9477099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Metastasis of histologically benign chondroblastoma is a rare event. The authors report a new case, 12th in the literature, wherein multiple lung metastases appeared almost simultaneously with the primary lesion in the right talus bone. METHODS A histologic evaluation of the primary lesion in the talus and the pulmonary metastasis was performed, and an ultrastructural study of the latter was done. Published literature on metastasizing chondroblastoma was reviewed to identify any consistency in the pattern and the outcome. RESULTS Metastasis of chondroblastoma is uncommon but well known. Although radiologic and histologic aggressive features have been sought, they do not necessarily correlate with the outcome. CONCLUSIONS Metastasis in chondroblastoma has been insufficiently stressed in the literature, unlike metastasis in giant cell tumors. The purpose of this case report is not only to document this uncommon event (the 12th case of lung metastasis) but also to emphasize that patients with chondroblastoma may have metastasis at presentation. Hence, all patients need to be evaluated regularly from the onset for possible lung metastasis so that deposits can be detected early for total resection.
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