576
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Verma A, Maheshwari MC. Intracranial hypertension. Indian Pediatr 1986; 23 Suppl:129-37. [PMID: 3311994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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577
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Kumar N, Verma A, Maheshwari MC, Kumar BR. Prosopagnosia (a report of two cases). THE JOURNAL OF THE ASSOCIATION OF PHYSICIANS OF INDIA 1986; 34:733-5. [PMID: 3818525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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578
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Verma A, Maheshwari MC. Facial diplegia following antirabies vaccine. THE JOURNAL OF THE ASSOCIATION OF PHYSICIANS OF INDIA 1986; 34:603-4. [PMID: 3793687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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579
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Abstract
Procedures are described for the solubilization of adenosine uptake sites in guinea pig and rat brain tissue. Using [3H]nitrobenzylthioinosine [( 3H]NBI) the solubilized site is characterized both kinetically and pharmacologically. The binding is dependent on protein concentration and is saturable, reversible, specific, and high affinity in nature. The KD and Bmax of guinea pig extracts are 0.13 +/- 0.02 nM and 133 +/- 18 fmol/mg protein, respectively, with linear Scatchard plots obtained routinely. Similar kinetic parameters are observed in rat brain. Adenosine uptake inhibitors are the most potent inhibitors of [3H]NBI binding with the following order of potency, dilazep greater than hexobendine greater than dipyridamole. Adenosine receptor ligands are much less potent inhibitors of binding, and caffeine is without effect. The solubilized adenosine uptake site is, therefore, shown to have virtually identical properties to the native membrane site. The binding of the adenosine A1 receptor agonist [3H]cyclohexyladenosine [( 3H]CHA) to the solubilized brain extract was also studied and compared with that of [3H]NBI. In contrast to the [3H]NBI binding site [3H]CHA binds to two apparent populations of adenosine receptor, a high-affinity site with a KD of 0.32 +/- 0.06 nM and a Bmax of 105 +/- 30 fmol/mg protein and a lower-affinity site with a KD of 5.50 +/- 0.52 nM and Bmax of 300 +/- 55 fmol/mg protein. The pharmacology of the [3H]CHA binding site is consistent with that of the adenosine receptor and quite distinct from that of the uptake [( 3H]NBI binding) site. Therefore, we show that the adenosine uptake site can be solubilized and that it retains both its binding and pharmacologic properties in the solubilized state.
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580
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Gupta V, Verma A, Tripathi VN, Mehrotra SN, Gupta SN. Anhidrotic ectodermal dysplasia. JOURNAL OF THE INDIAN MEDICAL ASSOCIATION 1985; 83:58-9. [PMID: 4056420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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581
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Abstract
The binding of the potent adenosine uptake inhibitor [3H]nitrobenzylthioinosine ( [3H]NBI) to cerebral cortical membrane preparations from human, dog, guinea pig, rat, and mouse was investigated. Reversible, specific, saturable, high affinity binding was found in all five species with similar kinetic parameters. (Kd = 0.16-0.44 nM; Bmax = 128-196 fmol/mg prot.). Dilazep, hexobendine, and dipyridamole were all high potency inhibitors of [3H]NBI binding in human, dog, guinea pig and mouse preparations but not in rat. These compounds showed a competitive inhibition of [3H]NBI binding indicating that they are acting at the same site. Discrepancies seen in the rat appear to be a unique, species related anomaly. The dihydropyridine calcium antagonists also inhibited binding with lower potency than the adenosine uptake blockers. This inhibition was most potent in dog and human and suggests a relationship between the calcium channel and the adenosine uptake site.
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582
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Marangos PJ, Finkel MS, Verma A, Maturi MF, Patel J, Patterson RE. Adenosine uptake sites in dog heart and brain; interaction with calcium antagonists. Life Sci 1984; 35:1109-16. [PMID: 6482650 DOI: 10.1016/0024-3205(84)90076-6] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
[3H] Nitrobenzylthioinosine (NBI) binding is characterized in dog heart and brain. Evidence is presented suggesting that [3H]NBI is binding to the adenosine uptake site in both tissues. Physiologic studies in open-chested dogs clearly demonstrate that NBI acts as a coronary vasodilator, consistent with an action at the adenosine uptake site. The binding is reversible, saturable and of high affinity (KD = 0.78 +/- .06 nM for heart and 0.52 +/- .05 nM for brain). Both dipyridamole and hexobendine are high potency inhibitors of [3H]NBI binding in heart and brain while other antihypertensives and vasodilators such as propranolol and nitroglycerin have no effect. The inhibition of [3H]NBI binding observed with dipyridamole was competitive indicating that both agents are acting at the same site. The dihydropyridine calcium antagonists also inhibited binding with a lower potency than the adenosine uptake blockers. Non-dihydropyridine calcium antagonists were much less potent in this regard. The inhibition of [3H]NBI binding observed with the dihydropyridine calcium antagonists was non-competitive suggesting that the calcium channel and adenosine uptake site may be coupled to each other.
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583
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Abstract
Brainstem auditory evoked responses were recorded in 22 diabetic patients with a variable duration of illness (mean 5.8 years) and 14 normal healthy controls of comparable age. The initial 10 millisecond components, found to be most consistent and reproducible, were analysed. Variations in the form of individual wave latency, interpeak latencies and V wave amplitude were compared in both the groups. No difference was found in any of the parameters. It was concluded that central neural pathways are not involved at least initially in diabetes mellitus.
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584
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Patel J, Marangos PJ, Heydorn WE, Chang G, Verma A, Jacobowitz D. S-100-mediated inhibition of brain protein phosphorylation. J Neurochem 1983; 41:1040-5. [PMID: 6619843 DOI: 10.1111/j.1471-4159.1983.tb09048.x] [Citation(s) in RCA: 61] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The effects of the glial-specific, calcium-binding, S-100 protein on brain membrane and supernatant protein phosphorylation were assessed. S-100 concentrations as low as 5 micrograms/ml caused a marked inhibition of the phosphorylation of a soluble brain protein having a molecular weight of 73,000 daltons (73K). This protein was designated the S-100 protein-modulated phosphoprotein (SMP). Half-maximal inhibition of the phosphorylation of SMP by S-100 was obtained at concentrations of 12 micrograms/ml (0.57 microM). The inhibition of SMP phosphorylation by S-100 was calcium-dependent, with a calculated calcium Ka of 2.0 +/- 0.3 microM. SMP phosphorylation was also inhibited by calmodulin, but only partially and with a much lower potency. The inhibition of SMP phosphorylation by S-100 was not inhibited by fluphenazine, whereas the effect of calmodulin was. SMP was found in many brain areas, with the highest levels seen in the corpus callosum. Various peripheral tissues, such as kidney; liver; and pineal, pituitary, and adrenal glands, did not contain detectable SMP levels. At higher S-100 concentrations, greater than 10 micrograms/ml, the phosphorylation of several other soluble proteins was markedly inhibited. These proteins have molecular weights of 56K, 50K, and 47K. The phosphorylation of these proteins was enhanced by calmodulin. These data suggest that the S-100 protein may function to modulate the phosphorylation of brain proteins in a manner analogous to (although in a reciprocal fashion) that of calmodulin.
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585
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Verma A, Sharma R, Jain VK. Energetics of DNA repair in UV-irradiated peripheral blood leukocytes from chronic myeloid leukaemia patients. Photochem Photobiol 1982; 36:627-32. [PMID: 6961469 DOI: 10.1111/j.1751-1097.1982.tb09482.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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586
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Singh D, Kumar S, Verma A, Singh M. Nutritional deficiencies and cataract. Indian J Ophthalmol 1981; 29:481-4. [PMID: 6809616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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587
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Singh D, Kumar S, Verma A, Bajaj A. Complications after intraocular lens implants. (Prevention and management). Indian J Ophthalmol 1981; 29:419-23. [PMID: 6980833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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588
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Singh D, Verma A, Singh M. Failure in glaucoma surgery. Indian J Ophthalmol 1981; 29:161-5. [PMID: 7346421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
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589
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Singh D, Verma A, Singh M. Transciliary filtration for intractable glaucoma. Indian J Ophthalmol 1981; 29:157-60. [PMID: 7346420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
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590
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Singh D, Singh N, Verma A. Conjunctivo-vestibular anastomosis. (For intractable epiphora). Indian J Ophthalmol 1981; 29:239-41. [PMID: 7346435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
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591
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Krishnaswami R, Kumar L, Verma A. Hypertrichosis Universalis Congenita. Indian J Dermatol Venereol Leprol 1981; 47:286-289. [PMID: 28211412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A rare disease, hypertichosis universalis congenita was seen in a 7-month-old male child. Father also had a similar disorder. There was long black hair all over the body of the child except on the palms, soles and genitalia. Patient has been advised electrolysis when he is about 8 years of age. A brief review of literature in included.
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592
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Ahuja GK, Verma A, Ghosh P, Nagaraj MN. Stapedius reflexometry. A diagnostic test of myasthenia gravis. J Neurol Sci 1980; 46:311-4. [PMID: 7381518 DOI: 10.1016/0022-510x(80)90055-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Contraction of the stapedius muscle can be measured by electroacoustic impedance bridge. Muscle weakness and easy fatiguability which are cardinal features of myasthenia gravis (MG) are manifested by increased threshold and early decay of the stapedius reflex. This can be used as an objective test in the diagnosis of myasthenia gravis. Stapedius reflex was measured using Madsen Zo72 electroacoustic impedance bridge in 10 patients with myasthenia gravis and in an equal number of controls. The test was done before and 30 min after intramuscular injection of neostigmin. All patients with myasthenia gravis showed an elevated reflex threshold and 5 patients showed reflex decay. These findings reverted to normal after neostigmin injection. Stapedius reflexometry is a simple objective test for the diagnosis of myasthenia gravis.
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593
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Singh D, Verma A, Singh M. Transciliary filtration for intractable glaucoma. TRANSACTIONS OF THE OPHTHALMOLOGICAL SOCIETIES OF THE UNITED KINGDOM 1979; 99:92-5. [PMID: 297389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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594
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Betkurer V, Guinan P, Verma A, Morillo E, Ablin RJ, Sparkuhl A, Cochin A. Effect of transurethral resection on coagulation in carcinoma of prostate. Urology 1979; 13:142-4. [PMID: 86226 DOI: 10.1016/0090-4295(79)90283-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Eleven patients with cancer of the prostate and 10 patients with benign prostatic hypertrophy (BPH) had thirteen parameters of coagulation evaluated before and after transurethral resection (TUR). Changes in fibrinogen and fibrin split products in both groups suggested potential incipient disseminated intravascular coagulation (DIC). It is concluded that prostatic cancer patients are no more susceptible to DIC than patients with BPH.
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595
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Singh D, Verma A. Bilateral peripapillary staphyloma (ectasia). Indian J Ophthalmol 1978; 25:50-1. [PMID: 659009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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596
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Devi PU, Saini MR, Verma A, Saharan BR. Radioprotective effect of 2-mercaptopropionylglycine on the small intestine of Swiss albino mice. INDIAN JOURNAL OF EXPERIMENTAL BIOLOGY 1977; 16:86-8. [PMID: 615131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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597
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Singh UB, Varma DN, Verma A, Lal M, Ranjhan SK. Metabolism of urea in buffalo calves fed on diets of different crude protein content. INDIAN JOURNAL OF EXPERIMENTAL BIOLOGY 1975; 13:160-2. [PMID: 1193694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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598
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Verma A. Birth control and planned parenthood in China. CHINA REPORT (NEW DELHI, INDIA) 1971; 7:41-48. [PMID: 11614338 DOI: 10.1177/000944557100700208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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