2126
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Kumar P, Nagpaul JP, Singh B, Bansal RC, Sharma R. Nature of inhibition of rat testicular alkaline phosphatase by isatin. EXPERIENTIA 1978; 34:434-5. [PMID: 639934 DOI: 10.1007/bf01935909] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Isatin has been found to inhibit rat testicular alkaline phosphatase (EC 3.1.3.1). That the inhibition is non-competitive as well as non-allosteric is evident from a) the hyperbolic curve relating inhibition as a function of inhibitor concentration; b) the small change in enthalpy, free energy and entropy; c) the number of isatin molecules associating with 1 molecule of the enzyme (n=1.29); and, d) the decrease in the values of both Km and Vmax in the presence of isatin.
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2127
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Elsworth JD, Glover V, Reynolds GP, Sandler M, Lees AJ, Phuapradit P, Shaw KM, Stern GM, Kumar P. Deprenyl administration in man: a selective monoamine oxidase B inhibitor without the 'cheese effect'. Psychopharmacology (Berl) 1978; 57:33-8. [PMID: 96466 DOI: 10.1007/bf00426954] [Citation(s) in RCA: 205] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
After pretreatment with the selective monoamine oxidase B inhibitor, (-)-deprenyl, in doses sufficient for complete inhibition of the platelet enzyme, 4 normal and 6 parkinsoniam volunteers (2 receiving levodopa and 2 levodopa plus carbidopa) suffered no adverse pressor reaction ('cheese effect') after challenge with oral tyramine in amounts considerably greater than those likely to be encountered in a normal diet. Nor did the levodopa-deprenyl combination itself result in a pressor response. Normal human intestinal mucosa was shown predominantly to contain the deprenyl-insensitive A form of the enzyme, which presumably degraded administered tyramine in the deprenyl-treated volunteers; even those receiving the drug for prolonged periods manifested no 'cheese effect', suggesting that the A form remained uninhibited. Intestinal monoamine oxidase A was able to oxidise dopamine, whereas in human platelet or striatum the amine is a monoamine oxidase B substrate. Like tyramine, oral phenylethylamine challenge with amounts greater than those known to be present in a normal diet similarly gave rise to no adverse reaction in (-)-deprenyl-treated subjects; the reasons for this remain to be determined.
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2128
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Kumar P, Nizam J. Induced chromosomal aberrations in somatic cells of Nigella sativa L. by mitomycin C. ZENTRALBLATT FUR BAKTERIOLOGIE, PARASITENKUNDE, INFEKTIONSKRANKHEITEN UND HYGIENE. ZWEITE NATURWISSENSCHAFTLICHE ABTEILUNG: MIKROBIOLOGIE DER LANDWIRTSCHAFT DER TECHNOLOGIE UND DES UMWELTSCHUTZES 1978; 133:537-42. [PMID: 735507 DOI: 10.1016/s0323-6056(78)80111-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A cytological study was carried out on root tips of Nigella sativa L. by treatment with Mitomycin C at 0.001% for six time intervals (10, 15, 20, 30, 40, and 50 min). The chromosomal abnormalities were increasingly proportionate to the increase in time of treatment. The seedlings treated with a 0.001% concentration of Mitomycin C for 10 min. did not show any significant effect. At other time intervals, the effect was observed to be quite significant. Beyond 40 min. treatment almost all the cells would become sticky. Thirty minutes' treatment showed significant effect, inducing various types of chromosomal aberrations in the anaphase, such as bridges and fragments of 34.13% and 48.07%, respectively.
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2129
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Kumar P, Trehan S, Sareen KN, Dani HM. Rat testicular hyaluronidase--subcellular localization and interaction with isatin. Indian J Med Res 1978; 67:73-7. [PMID: 658999] [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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2130
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Lancaster-Smith M, Joyce S, Kumar P. Immunoglobulins in the jejunal mucosa in adult coeliac disease and dermatitis herpetiformis after the reintroduction of dietary gluten. Gut 1977; 18:887-91. [PMID: 338443 PMCID: PMC1411725 DOI: 10.1136/gut.18.11.887] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Cells containing immunoglobulin (IgA, IgG, IgM) have been measured and the distribution of extracellular and epithelial cell immunoglobulin assessed in treated patients with adult coeliac disease (ACD) and dermatitis herpetiformis (DH) before and after gluten was reintroduced to the diet. Patients with ACD and DH frequently had IgM and IgG cells above the normal range even before re-exposure to gluten, although the range of IgA cells was normal. In both diseases IgA and IgM cells increased after gluten with a proportionally greater rise in the latter, so that numbers of IgM cells, but not of IgA, exceeded the control range in all but one patient. There were increased quantities of IgA and IgM extracellularly in the lamina propria and in epithelial cells after challenge with gluten. Third component of complement was also found in some biopsies after re-exposure to gluten. These findings support the suggestion that gluten induces a humoral immunological response within the small intestinal mucosa and that both IgA and IgM systems are involved.
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2131
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Arora-Dinakar R, Dinakar N, Kumar P, Talesara CL, Prasad MR. Histochemical distribution of metabolites & lipolytic enzymes in different regions of the epididymis of the adult rhesus monkey Macaca mulatta. INDIAN JOURNAL OF EXPERIMENTAL BIOLOGY 1977; 15:870-3. [PMID: 414997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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2132
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Arora-Dinakar R, Dinakar N, Kumar P, Talesara CL, Prasad MR. Histochemical distribution of phosphatases in different regions of the epididymis of the adult rhesus monkey Macaca mulatta. INDIAN JOURNAL OF EXPERIMENTAL BIOLOGY 1977; 15:859-64. [PMID: 203524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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2133
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Dinakar N, Arora-Dinakar R, Kumar P, Talesara CL, Prasad MR. Histochemical localization of dehydrogenases in different regions of the epididymis of the adult rhesus monkey Macaca mulatta. INDIAN JOURNAL OF EXPERIMENTAL BIOLOGY 1977; 15:865-9. [PMID: 414996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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2134
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2135
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Kumar P, Dani HM, Trehan S. Effect of isatin on testicular hyaluronidase. INDIAN JOURNAL OF EXPERIMENTAL BIOLOGY 1977; 15:655-6. [PMID: 564329] [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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2136
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Kumar P, Trehan S, Dani HM. Effect of caffeine on testicular hyaluronidase of different species. CURR SCI INDIA 1977; 46:224-5. [PMID: 872991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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2137
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Henschke V, Kumar P, Mahan D, Patel I. Radioactive sources with interstitial implantation for ENT cancers. EAR, NOSE & THROAT JOURNAL 1977; 56:115-24. [PMID: 852444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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2138
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Singh B, Kumar P, Bansal RC, Nagpaul JP, Sharma R. Rat kidney alkaline phosphatase : essential groups in catalysis & isatin inhibition. INDIAN JOURNAL OF BIOCHEMISTRY & BIOPHYSICS 1977; 14:88-9. [PMID: 562843] [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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2139
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Kumar P, Talesara CL. Influence of age upon the onset & rate of progression of denervation atrophy in skeletal muscle: relative neuronal (trophic) independence upon fiber type maturation. INDIAN JOURNAL OF EXPERIMENTAL BIOLOGY 1977; 15:45-51. [PMID: 908591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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2140
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Dhir SP, Jain IS, Kumar P, Aggarwal KC, Ganguly NK. Salmonella lid abscess. Indian J Ophthalmol 1977; 24:27-8. [PMID: 924617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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2141
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Singh B, Nagpaul JP, Kumar P. Effect of isatin on liver acid phosphatase of different species--a comparative study on rat & hedgehog, liver enzyme. INDIAN JOURNAL OF EXPERIMENTAL BIOLOGY 1977; 15:64-6. [PMID: 908595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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2142
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Bhatnagar VM, Jain SC, Singhal SS, Kumar P. Single plane cineangiographic study of normal left ventricular volumes in human subjects. INDIAN JOURNAL OF PHYSIOLOGY AND PHARMACOLOGY 1977; 21:40-4. [PMID: 873590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Single plane cine angiographic estimation of left ventricular volumes in 10 Indian subjects with no evidence of left ventricular disease was carried out. The figures obtained were end diastolic volume 72.43+/-10.27 ml/M2, endsystolic volume 26.82+/-7.46 ml/M2, stroke volume 45.61+/-12.23ml/M2, ejection faction 62.30+/-10.90%. These values compare well with those already reported in literature from Western countries. No study in Indian subjects was available for comparison so far.
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2143
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Kuchhal RK, Kumar P, Gupta PL, Mallik KL. Rapid gas chromatographic analysis of aromatics in a cracked fraction, IBP-170°C. Chromatographia 1976. [DOI: 10.1007/bf02275968] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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2144
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Prasad R, Dayal RS, Srivastava VK, Kumar P. Beta1 C (C'3) complement estimation in various types on nephritis in children. Indian Pediatr 1976; 13:97-102. [PMID: 1278967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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2145
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Pathak RS, Kumar P. A study of heterosis in upland cotton (Gossypium hirsutum L.). TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 1976; 47:45-49. [PMID: 24414319 DOI: 10.1007/bf00277404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/1975] [Indexed: 06/03/2023]
Abstract
Heterosis (over mid parent) and "useful" heterosis (over commercial variety H14) estimates were obtained from a line x tester analysis of crosses involving thirteen diverse female parents with two locally adapted varieties H14 (local standard) and J34. Marked heterosis was observed for seed cotton yield, boll number and halo length. The values of positive heterosis and "useful" heterosis for seed cotton yield ranged from 28.1 to 87.0% and 20.1 to 45.5%, respectively. The overall study of heterosis revealed that female parents PRS-72 (USSR), 5904F (USSR) and MCU-5 (Madras Cambodian Uganda Selection, Coimbatore) were among the top three females, showing considerable heterosis in crosses with H14 and J34 for seed cotton yield and fibre properties. The practical difficulties in exploiting the phenomenon of heterosis and possible experimental approaches in upland cotton are discussed.
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2146
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Das P, Kumar P, Gupta CK, Indrayan A. Clinical patterns of abdominal tuberculosis. AMERICAN JOURNAL OF PROCTOLOGY 1975; 26:75-86. [PMID: 1119554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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2147
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Lancaster-Smith M, Kumar P, Clark ML, Marks R, Johnson GD. Antireticulin antibodies in dermatitis herpetiformis and adult coeliac disease. Their relationship to a gluten free diet and jejunal histology. Br J Dermatol 1975; 92:37-42. [PMID: 1156543 DOI: 10.1111/j.1365-2133.1975.tb03030.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Antireticulin antibody was present in 17% of sera from thirty-five patients with dermatitis herpetiformis, 45% from twenty-eight patients with adult coeliac disease and none of thirty healthy controls. There was a higher incidence of antireticulin antibody(a) in patients on normal diets than in those on gluten free diets, and (b) in patients with subtotal villous atrophy than in those with partial villous atrophy. Two patterns of tissue staining were demonstrated, one of which was almost invariably associated with jejunal subtotal villous atrophy. The Ig class of the antibody was IgG in all instances but in 64% antibody of the IgA class was also present.
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2148
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Lancaster-Smith M, Kumar P, Marks R, Clark ML, Dawson AM. Jejunal mucosal immunoglobulin-containing cells and jejunal fluid immunoglobulins in adult coeliac disease and dermatitis herpetiformis. Gut 1974; 15:371-6. [PMID: 18668846 PMCID: PMC1412914 DOI: 10.1136/gut.15.5.371] [Citation(s) in RCA: 41] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
Abstract
Immunoglobulin-containing plasma cell densities in the jejunal mucosa and serum and jejunal fluid immunoglobulins have been measured in patients with adult coeliac disease and dermatitis herpetiformis with and without jejunal mucosal abnormality. Studies were performed in patients before and after treatment of the jejunal lesion.Total immunofluorescent plasma cells were increased in untreated adult coeliac disease and dermatitis herpetiformis patients with jejunal lesions, but in general the normal predominance of IgA > IgM > IgG was found. There was no difference from controls in IgA-containing cells in the two conditions before or after treatment. The numbers of IgM-containing cells were significantly increased both before and after treatment in groups of patients with adult coeliac disease and dermatitis herpetiformis who had jejunal lesions. IgG-containing cells were significantly raised in only the before-treatment groups. Patients with dermatitis herpetiformis without jejunal lesions, even whilst on gluten-containing diets, had normal numbers of immunoglobulin-containing cells. IgA and IgM jejunal fluid immunoglobulins were significantly raised in dermatitis herpetiformis and adult coeliac disease.It is concluded that patients with dermatitis herpetiformis with jejunal morphological abnormality have a comparable immunological disturbance of the jejunal mucosa to that found in adult coeliac disease.
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2149
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Lancaster-Smith M, Kumar P, Clark ML. Proceedings: Immunological phenomena following gluten challenge in the jejunum of patients with adult coeliac disease and dermatitis herpetiformis. Gut 1974; 15:339. [PMID: 4599875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
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2150
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Kumar P, Lancaster-Smith M, Cook P, Stansfeld A, Clark ML, Dawson AM. Alpha1 antitrypsin deficiency in chronic liver disease, and a report of cirrhosis and emphysema in adult members of a family. BRITISH MEDICAL JOURNAL 1974; 1:366-7. [PMID: 4544818 PMCID: PMC1633575 DOI: 10.1136/bmj.1.5904.366] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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