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Viswanathan M, Snehalatha C, Bhattacharyya PK, Mohan V, Ramachandran A. Microalbuminuria in NIDDM patients in south India. Indian J Med Res 1991; 94:125-9. [PMID: 1879886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Urinary albumin excretion (UAE) was estimated by radioimmunoassay in 316 non-insulin dependent diabetic patients (NIDDM), with diabetes for 10 or more years and proteinuria less than 150 mg/24 h. Albuminuria was determined in 24 h collection of urine in 259 patients but in the other 57, a random sample was used. The mean UAE was 23 +/- 45.3 (SD) micrograms/mg creatinine in the patients against 4.4 +/- 2.7 micrograms/mg in the controls (30). Ninety patients (28.5%) had microalbuminuria i.e., the UAE exceeded, 20 micrograms/mg creatinine. A higher percentage (31.7%) of men had microalbuminuria than women (23.6%). The presence of microalbuminuria was similar in the insulin-treated and in oral drug-treated patients (29.6% and 26.5% respectively). Stepwise multiple regression analysis using albumin/creatinine ratio as the dependent variable showed that factors such as blood pressure, blood glucose, HbA1, body mass index, sex, age, duration of diabetes and the association of vascular complications of diabetes did not have significant correlation to microalbuminuria. Creatinine clearance showed a significant inverse correlation to the albumin/creatinine ratio. Although the prevalence of microalbuminuria in NIDDM in this study is not significantly different from those reported from other countries, the morbidity index due to kidney disease could be high due to the large absolute number involved in our country. This underscores the need for early detection of the disease and institution of preventive measures to arrest its progression.
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Mohan V, Snehalatha C, Bhattacharyya PK, Ramachandran A, Viswanathan M. Nutritional profile of fibrocalculous pancreatic diabetes and primary forms of diabetes seen in southern India. Diabetes Res Clin Pract 1991; 11:203-7. [PMID: 2036942 DOI: 10.1016/s0168-8227(05)80034-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Plasma levels of retinol binding protein (RBP), prealbumin, total protein, albumin, transferrin and ferritin were estimated in three groups of diabetic patients seen at a diabetes centre in S. India. The groups consisted of patients with fibrocalculous pancreatic diabetes (FCPD), non-insulin-dependent diabetes mellitus (NIDDM) and insulin-dependent diabetes mellitus (IDDM). Mean RBP levels were lower in FCPD and IDDM patients compared to controls but this did not reach statistical significance. Prealbumin levels were normal in FCPD patients, but low in IDDM compared to controls (P less than 0.005) and NIDDM (P less than 0.05). FCPD patients had lower transferrin levels compared to controls (P less than 0.05). There were no differences in the levels of total protein, albumin and ferritin in any of the study groups. The study shows that biochemical evidence of undernutrition is seen in FCPD and IDDM patients while NIDDM patients are not significantly different from non-diabetic control subjects.
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Ramachandran A, Snehalatha C, Mohan V, Bhattacharyya PK, Viswanathan M. Decreased insulin sensitivity in offspring whose parents both have type 2 diabetes. Diabet Med 1990; 7:331-4. [PMID: 2140086 DOI: 10.1111/j.1464-5491.1990.tb01400.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Offspring of two Type 2 diabetic parents have a high prevalence of diabetes and impaired glucose tolerance. Studies in normoglycaemic offspring have shown abnormal insulin responses. Twenty-four non-obese offspring having normal oral glucose tolerance were investigated by the insulin tolerance test for abnormalities of insulin sensitivity. Plasma insulin responses were measured during an oral glucose tolerance test. Although the plasma glucose responses during the OGTT were similar to the control values, the corresponding insulin responses were higher. The mean area under the insulin curve was 121 +/- 29 (+/- SD) mU l-1 h in the control subjects and 203 +/- 73 mU l-1 h in the offspring (p less than 0.001). The mean KITT value in the offspring was 4.3 +/- 1.9 min-1 x 100 which was significantly lower (p less than 0.01) than the value of 6.2 +/- 2.0 min-1 x 100 in the control subjects. The results suggest that some offspring of two Type 2 diabetic parents have low insulin sensitivity and the presence of hyperinsulinism may be a compensatory phenomenon.
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Ullah AJ, Murray RI, Bhattacharyya PK, Wagner GC, Gunsalus IC. Protein components of a cytochrome P-450 linalool 8-methyl hydroxylase. J Biol Chem 1990; 265:1345-51. [PMID: 2295633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The cytochrome P-450 heme-thiolate monooxygenases that hydroxylate monoterpene hydrocarbon groups are effective models for the cytochrome P-450 family. We have purified and characterized the three proteins from a P-450-dependent linalool 8-methyl hydroxylase in Pseudomonas putida (incognita) strain PpG777. The proteins resemble the camphor 5-exohydroxylase components in chemical and physical properties; however, they show neither immunological cross-reactivity nor catalytic activity in heterogenous recombination. These two systems provide an excellent model to probe more deeply the heme-thiolate reaction center, molecular domains of substrate specificity, redox-pair interactions, and the regulation of the reaction cycle.
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Ullah AJ, Murray RI, Bhattacharyya PK, Wagner GC, Gunsalus IC. Protein components of a cytochrome P-450 linalool 8-methyl hydroxylase. J Biol Chem 1990. [DOI: 10.1016/s0021-9258(19)40020-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Bhattacharyya PK, Chakravorty NK. Lower motor neurone paralysis due to herpes zoster. THE BRITISH JOURNAL OF CLINICAL PRACTICE 1988; 42:79-82. [PMID: 3179177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Bhattacharyya PK, Syamal DK, Saha BC. Glauber-eikonal study of electron-molecule scattering at intermediate energies with the use of the free-electron-gas model: H2. PHYSICAL REVIEW. A, GENERAL PHYSICS 1985; 32:854-870. [PMID: 9896136 DOI: 10.1103/physreva.32.854] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Gunsalus IC, Bhattacharyya PK, Suhara K. Bioregulation of binding and dynamics: the cytochrome P-450CAM model. CURRENT TOPICS IN CELLULAR REGULATION 1985; 26:295-309. [PMID: 4075822 DOI: 10.1016/b978-0-12-152826-3.50029-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Rao MK, Madyastha KM, Bhattacharyya PK. Novel transformations of i-cholesterol and 6 beta-methoxy-i-cholesterol by Moraxella sp. JOURNAL OF STEROID BIOCHEMISTRY 1983; 19:1391-5. [PMID: 6645481 DOI: 10.1016/0022-4731(83)91112-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A soil microorganism was isolated by the enrichment culture technique using cholesterol as the sole source of carbon. The organism has been identified as belonging to the genus Moraxella. With this organism two novel biotransformations of sterols were observed viz. (1) isomerization of 3 alpha,5 alpha-cyclocholestan-6 beta-ol (i-cholesterol) to cholesterol, (2) demethylation of 6 beta-methoxy-3 alpha,5 alpha-cyclocholestane (6 beta-methoxy-i-cholesterol) to i-cholesterol with subsequent isomerization to cholesterol. The enzymes responsible for these transformations were shown to be inducible. The pH optimum of the partially purified i-cholesterol isomerase was found to be 8.4. The apparent Km value for i-cholesterol was 1.43 microM. A plausible mechanism for the i-cholesterol isomerization has been discussed.
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Srinivasan Y, Devanandan MS, Bhattacharyya PK. An immunological probe for identification of strychnine binding sites on neuronal membrane. INDIAN JOURNAL OF BIOCHEMISTRY & BIOPHYSICS 1983; 20:267-70. [PMID: 6327503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Bhattacharyya PK, Nataraj CV, Mandal C, Bhatnagar SP, Pal SP, Rao DR. Chemical approaches to penicillin allergy. HINDUSTAN ANTIBIOTICS BULLETIN 1982; 24:62-9. [PMID: 7169382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Bhattacharyya PK, Niranjan BG, Jacob JN, Nataraj CV, Bhatnagar SP, Iyengar RR, Venkataram UV, Manivel V. Preparation of 6-aminopenicillanic acid--chemical vs enzymatic methods. HINDUSTAN ANTIBIOTICS BULLETIN 1982; 24:108-18. [PMID: 6302033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Bhattacharyya A, Bhattacharyya PK. A novel method for recognition of organic molecules on biomembranes: fluorescence studies on strychnine. INDIAN JOURNAL OF BIOCHEMISTRY & BIOPHYSICS 1981; 18:425-9. [PMID: 6800932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Bhattacharyya PK, Bhattacharyya A. Fluorescent labelling of strychnine : a novel approach for recognition of strychnine binding sites on neuronal membrane. Biochem Biophys Res Commun 1981; 101:273-80. [PMID: 6793042 DOI: 10.1016/s0006-291x(81)80041-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Ramanjaneyulu R, Madyastha KM, Bhattacharyya PK. Chemical approach to aspirin hypersensitivity. Biochem Biophys Res Commun 1981; 101:258-64. [PMID: 6793041 DOI: 10.1016/s0006-291x(81)80039-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Bhattacharyya A, Madyastha KM, Bhattacharyya PK. Studies on the bicuculline-GABA interactions on neuronal membrane with fluorescent labelled anti-bicuculline antibodies. INDIAN JOURNAL OF BIOCHEMISTRY & BIOPHYSICS 1981; 18:171-6. [PMID: 6273300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Bhattacharyya A, Madyastha KM, Bhattacharyya PK, Devanandan MS. Studies on bicuculline binding sites on neuronal membrane using fluorescent antibody technique: comparative binding of GABA and bicuculline. Biochem Biophys Res Commun 1981; 98:520-6. [PMID: 6784723 DOI: 10.1016/0006-291x(81)90871-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Lenka MR, Ghosh E, Bhattacharyya PK. ABO blood groups in relation to hepatitis-B surface antigen (Australia antigen). Trans R Soc Trop Med Hyg 1981; 75:688-90. [PMID: 7330923 DOI: 10.1016/0035-9203(81)90149-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
The ABO blood groups and their relationship with Australia antigen (HBsAg) were studied in 500 blood donors and 76 patients. Most of the blood donors belonged to group 'B' while the Australia antigen (HBsAg) was prevalent in the blood group 'A' (9.30%). 76 patients clinically diagnosed as viral hepatitis showed a similar trend, having the highest percentage of HBsAg positivity in 'A' group (35.71%). In both, this was found statistically significant (P greater than 0.005). None of those with AB blood group showed HBsAg.
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Bhattacharyya PK, Ghosh TN, Basu AK, Chakraborty R. The sickle cell trait in the Santhals of Ajodhya hills of Purulia district, West Bengal. Trans R Soc Trop Med Hyg 1981; 75:615-6. [PMID: 7034322 DOI: 10.1016/0035-9203(81)90228-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
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Bhattacharyya PK. NMR spectral study of proton transfer in amitriptyline hydrochloride--chlordiazepoxide hydrochloride combinations in dipolar aprotic solvent. J Pharm Sci 1980; 69:180-3. [PMID: 7359319 DOI: 10.1002/jps.2600690216] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The singlet resonance due to the two equivalent methyl groups of amitriptyline hydrochloride in dimethyl sulfoxide-d6 solution changed into a doublet with the addition of chlordiazepoxide hydrochloride. A spin decoupling experiment revealed that the double originated because of the emergence of observable spin--spin coupling between the tertiary amine proton and the methyl groups. The phenomenon was interpreted to be due to the nature of proton transfer caused by the relative magnitudes of the basicities of the amines in these compounds, which were determined by the inductive and steric effects of the substituents, leading to the formation of hydrogen-bonded ion-pairs in the aprotic diluent. The enthalpy of the exchange process was 6.4 +/- 0.5 kcal/mole.
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Rama Devi J, Bhat SG, Bhattacharyya PK. Microbiological transformations of terpenes: Part XXV--enzymes involved in the degradation of linalool in the Pseudomonas incognita, Linalool strain. INDIAN JOURNAL OF BIOCHEMISTRY & BIOPHYSICS 1978; 15:323-7. [PMID: 367951] [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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Bhattacharyya PK, Nataraj CV, Sreenivasan Y, Niranjan BG, Jacob JN. Phenomenological and basic studies with affinity systems. HINDUSTAN ANTIBIOTICS BULLETIN 1978; 20:92-8. [PMID: 748292] [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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Devi JR, Bhattacharyya PK. Microbiological transformations of terpenes: Part XXIV--Pathways of degradation of linalool, geraniol, nerol & limonene by Pseudomonas incognita (linalool strain). INDIAN JOURNAL OF BIOCHEMISTRY & BIOPHYSICS 1977; 14:359-63. [PMID: 615106] [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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