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Palmisciano P, Ogasawara C, Nwagwu CD, Bin Alamer O, Gupta AD, Giantini-Larsen AM, Scalia G, Yu K, Umana GE, Cohen-Gadol AA, El Ahmadieh TY, Haider AS. Metastases in the Pineal Region: A Systematic Review of Clinical Features, Management Strategies, and Survival Outcomes. World Neurosurg 2022; 159:156-167.e2. [PMID: 34999267 PMCID: PMC10642482 DOI: 10.1016/j.wneu.2022.01.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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: 12/07/2021] [Revised: 01/01/2022] [Accepted: 01/03/2022] [Indexed: 02/06/2023]
Abstract
BACKGROUND Pineal region metastases are rare but often cause severe neurologic deficits. Surgical resection and chemoradiotherapy can provide therapeutic benefit. We investigated the literature to analyze clinical characteristics, management strategies, and survival of adult patients with pineal region metastases. METHODS PubMed, Embase, Scopus, and Cochrane were searched following the PRISMA guidelines, including studies reporting clinical outcomes of patients with pineal region metastases. Clinical presentation, management, and survival were reviewed. RESULTS We included 31 studies comprising 47 patients. Lung cancer (29.8%) and carcinomas of unknown origin (14.9%) were the most frequent primary tumors. In 48.9% of patients, symptomatic pineal metastases preceded primary tumor diagnosis. Headache (67.4%) and confusion (46.5%) were the most common symptoms. Parinaud syndrome (46.5%) and hydrocephalus (87.2%) were noted. Biopsy (65.9%) was preferred over resection (34.1%), and shunting strategies used were endoscopic third ventriculostomy (43.9%) and ventriculoperitoneal (26.8%). Eleven patients (32.3%) received adjuvant chemotherapy and 32 (68%) received radiotherapy. Posttreatment improvement in symptoms (56.6%) and hydrocephalus (80.5%) were noted. In patients who received adjuvant chemotherapy/radiotherapy, significant improvement in posttreatment performance status occurred with both biopsy (P < 0.001) and resection (P = 0.007). No survival differences were reported between surgery and biopsy (P = 0.912) or between complete and partial resection (P = 0.220). Overall survival was neither influenced by surgical approach (P = 0.157) nor by shunting strategy (P = 0.822). Mean follow-up was 8 months and median overall survival 3 months. Only 2 cases (4.8%) of pineal metastasis showed recurrence. CONCLUSIONS Pineal region metastases carry significant morbidity. Biopsy or surgical resection, combined with adjuvant chemotherapy/radiotherapy and/or shunting, may significantly improve performance status.
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Affiliation(s)
- Paolo Palmisciano
- Department of Neurosurgery, Trauma Center, Gamma Knife Center, Cannizzaro Hospital, Catania, Italy.
| | - Christian Ogasawara
- John A. Burns School of Medicine, University of Hawai'i, Honolulu, Hawaii, USA
| | | | - Othman Bin Alamer
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
| | - Aditya D Gupta
- Texas A&M University College of Medicine, Houston, Texas, USA
| | - Alexandra M Giantini-Larsen
- Department of Neurosurgery and Brain Metastases Center, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Gianluca Scalia
- Department of Neurosurgery, Highly Specialized Hospital of National Importance "Garibaldi" Catania, Italy
| | - Kenny Yu
- Department of Neurosurgery and Brain Metastases Center, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Giuseppe E Umana
- Department of Neurosurgery, Trauma Center, Gamma Knife Center, Cannizzaro Hospital, Catania, Italy
| | - Aaron A Cohen-Gadol
- Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Tarek Y El Ahmadieh
- Department of Neurosurgery and Brain Metastases Center, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Ali S Haider
- Texas A&M University College of Medicine, Houston, Texas, USA; Department of Neurosurgery, The University of Texas M.D. Anderson Cancer Center, Houston, Texas, USA
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Palmisciano P, Ferini G, Ogasawara C, Wahood W, Bin Alamer O, Gupta AD, Scalia G, Larsen AMG, Yu K, Umana GE, Cohen-Gadol AA, El Ahmadieh TY, Haider AS. Orbital Metastases: A Systematic Review of Clinical Characteristics, Management Strategies, and Treatment Outcomes. Cancers (Basel) 2021; 14:94. [PMID: 35008259 PMCID: PMC8750198 DOI: 10.3390/cancers14010094] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 12/18/2021] [Accepted: 12/23/2021] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Orbital metastases often lead to severe functional impairment. The role of resection, orbital exenteration, and complementary treatments is still debated. We systematically reviewed the literature on orbital metastases. METHODS PubMed, Scopus, Web-of-Science, and Cochrane were searched upon PRISMA guidelines to identify studies on orbital metastases. Clinical characteristics, management strategies, and survival were analyzed. RESULTS We included 262 studies comprising 873 patients. Median age was 59 years. The most frequent primary tumors were breast (36.3%), melanoma (10.1%), and prostate (8.5%) cancers, with median time interval of 12 months (range, 0-420). The most common symptoms were proptosis (52.3%) and relative-afferent-pupillary-defect (38.7%). Most metastases showed a diffuse location within the orbit (19%), with preferential infiltration of orbital soft tissues (40.2%). In 47 cases (5.4%), tumors extended intracranially. Incisional biopsy (63.7%) was preferred over fine-needle aspiration (10.2%), with partial resection (16.6%) preferred over complete (9.5%). Orbital exenteration was pursued in 26 patients (3%). A total of 305 patients (39.4%) received chemotherapy, and 506 (58%) received orbital radiotherapy. Post-treatment symptom improvement was significantly superior after resection (p = 0.005) and orbital radiotherapy (p = 0.032). Mean follow-up was 14.3 months, and median overall survival was 6 months. Fifteen cases (1.7%) demonstrated recurrence with median local control of six months. Overall survival was statistically increased in patients with breast cancer (p < 0.001) and in patients undergoing resection (p = 0.024) but was not correlated with orbital location (p = 0.174), intracranial extension (p = 0.073), biopsy approach (p = 0.344), extent-of-resection (p = 0.429), or orbital exenteration (p = 0.153). CONCLUSIONS Orbital metastases severely impair patient quality of life. Surgical resection safely provides symptom and survival benefit compared to biopsy, while orbital radiotherapy significantly improves symptoms compared to not receiving radiotherapy.
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Affiliation(s)
- Paolo Palmisciano
- Department of Neurosurgery, Trauma Center, Gamma Knife Center, Cannizzaro Hospital, 95126 Catania, Italy;
| | - Gianluca Ferini
- Department of Radiation Oncology, REM Radioterapia srl, 95029 Viagrande, Italy;
| | - Christian Ogasawara
- John A. Burns School of Medicine, University of Hawai’i, Honolulu, HI 96813, USA;
| | - Waseem Wahood
- Kiran C. Patel College of Allopathic Medicine, Nova Southeastern University, Davie, FL 33328, USA;
| | - Othman Bin Alamer
- Department of Neurosurgery, King Abdullah International Medical Research Center, Riyadh 11451, Saudi Arabia;
| | - Aditya D. Gupta
- College of Medicine, Texas A&M University, Houston, TX 77030, USA; (A.D.G.); (A.S.H.)
| | - Gianluca Scalia
- Department of Neurosurgery, Highly Specialized Hospital and of National Importance “Garibaldi”, 95126 Catania, Italy;
| | - Alexandra M. G. Larsen
- Department of Neurosurgery, Brain Metastasis Center, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; (A.M.G.L.); (K.Y.); (T.Y.E.A.)
| | - Kenny Yu
- Department of Neurosurgery, Brain Metastasis Center, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; (A.M.G.L.); (K.Y.); (T.Y.E.A.)
| | - Giuseppe E. Umana
- Department of Neurosurgery, Trauma Center, Gamma Knife Center, Cannizzaro Hospital, 95126 Catania, Italy;
| | - Aaron A. Cohen-Gadol
- Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, IN 46077, USA;
| | - Tarek Y. El Ahmadieh
- Department of Neurosurgery, Brain Metastasis Center, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; (A.M.G.L.); (K.Y.); (T.Y.E.A.)
| | - Ali S. Haider
- College of Medicine, Texas A&M University, Houston, TX 77030, USA; (A.D.G.); (A.S.H.)
- Department of Neurosurgery, Anderson Cancer Center, The University of Texas M.D., Houston, TX 77030, USA
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Selvakumar G, Kundu S, Joshi P, Nazim S, Gupta AD, Gupta HS. Growth promotion of wheat seedlings by Exiguobacterium acetylicum 1P (MTCC 8707) a cold tolerant bacterial strain from the Uttarakhand Himalayas. Indian J Microbiol 2009; 50:50-6. [PMID: 23100807 DOI: 10.1007/s12088-009-0024-y] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [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: 06/18/2007] [Accepted: 03/31/2008] [Indexed: 10/20/2022] Open
Abstract
Exiguobacterium acetylicum strain 1P (MTCC 8707) is a gram-positive, rod-shaped, yellow pigmented bacterium isolated from soil on nutrient agar plates at 4°C. The identity of the bacterium was arrived on the basis of the biochemical characterization, BIOLOG sugar utilization pattern and sequencing of the 16S rRNA gene. It grew at temperatures ranging from 4 to 42°C, with temperature optima at 30°C. It expressed multiple plant growth promotion attributes such as phosphate solubilization, indole acetic acid (IAA), siderophore and hydrogen cyanide (HCN) production, differentially at suboptimal growth temperatures (15 and 4°C). At 15°C it solubilized phosphate (21.1 μg of P ml(-1) day(-1)), and produced IAA (14.9 μg ml(-1) day(-1)) in tryptophan amended media. Qualitative detection of siderophore production and HCN were possible at 15°C. At 4°C it retained all the plant growth promotion attributes. Seed bacterization with the isolate, positively influenced the growth and nutrient uptake parameters of wheat seedlings in glass house studies at suboptimal cold growing temperatures.
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Affiliation(s)
- G Selvakumar
- Vivekananda Institute of Hill Agriculture, Indian Council of Agricultural Research, Almora, 263 601 India
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Rasheeda MK, Sreenivasulu G, Swapna I, Raghuveer K, Wang DS, Thangaraj K, Gupta AD, Senthilkumaran B. Thiourea-induced alteration in the expression patterns of some steroidogenic enzymes in the air-breathing catfish Clarias gariepinus. Fish Physiol Biochem 2005; 31:275-279. [PMID: 20035470 DOI: 10.1007/s10695-006-0036-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Previous study from our laboratory on thiourea-induced thyroid hormone depletion in mature male catfish demonstrated that thyroid hormones play a significant role in testicular function. In the present study, we aimed to analyze the changes in the expression pattern of several steroidogenic enzyme genes after thyroid hormone depletion using semi quantitative RT-PCR in both adult male and female catfish. There was a marked decrease in the 11beta-hydroxylase expression in the testis and liver while no change was observed in case of kidney. A significant decrease in 11beta-hydroxysteroid dehydrogenase transcript level in testis, liver and kidney were observed in the thiourea treated males. The results obtained corroborated with our earlier findings of testicular regression after thyroid hormone depletion. In females, expression of aromatase transcript increased in experimental group compared to control. There was no considerable change observed in the transcript level of 3beta-hydroxysteroid dehydrogenase, P450 17alpha-hydroxylase/C17-20-lyase, and 20beta-hydroxysteroid dehydrogenase in both males and females. Thus, thyroid hormones might exert modulating effect on steroidogenic enzyme genes at the transcription level.
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Affiliation(s)
- M K Rasheeda
- Department of Animal Sciences, School of Life Sciences, University of Hyderabad, P.O. Central University, Gachibowli, Hyderabad, 500 046, India
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Jacob TN, Pandey JP, Raghuveer K, Sreenivasulu G, Gupta AD, Yoshikuni M, Jagota A, Senthilkumaran B. Thyroxine-induced alterations in the testis and seminal vesicles of air-breathing catfish, Clarias gariepinus. Fish Physiol Biochem 2005; 31:271-274. [PMID: 20035469 DOI: 10.1007/s10695-006-0035-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Effect of experimentally induced thyroxine overdose on the testis and seminal vesicles was studied in the air-breathing catfish, Clarias gariepinus during the preparatory and the pre-spawning phase. The present study revealed a marked reduction in testosterone level in serum, testis and seminal vesicles (SV). Histological examination showed a considerable reduction in the number of spermatozoa/spermatids in the seminiferous tubular lumen as well as depletion of fluid in the loculi of SV. SDS-PAGE analysis of SV fluid proteins demonstrated a significant decrease in the level of a ~27 kDa protein in thyroxine treated fishes. Evidences are presented here to indicate that thyroid hormone plays a role in regulating testis and SV function in catfish.
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Affiliation(s)
- T N Jacob
- Department of Animal Sciences, School of Life Sciences, University of Hyderabad, Hyderabad, 500 046, India
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Affiliation(s)
- A D Gupta
- Division of Physical Medicine and Rehabilitation, ESI Hospital Manicktala, Kolkata, India.
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Gupta AD, Mandolkar M, Sethi M, Khodaiji S, Gupta T, Soman R, Chandiramani V. Spontaneously developing autoantibody to factor VIII in an elderly woman: diagnostic and therapeutic challenges. J Assoc Physicians India 2004; 52:72-3. [PMID: 15633726] [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] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
An elderly woman with a continuously bleeding small wound was investigated for the presence of antibodies to FVIII using activated partial time-based screening and confirmatory tests. A late acting coagulation factor inhibitor was detected. The same was characterised to be a low titre antibody against FVIII (5.2 Bethesda units). Cryoprecipitate infusions, corticosteroids and topical desmopressin were unsuccessful in controlling the bleeding. Addition of cyclophosphamide brought about stoppage of bleeding and disappearance of the autoantibody.
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Affiliation(s)
- A D Gupta
- Department of Medicine, PDHinduia National Hospital and Medical Research Centre (National Health and Education Society), Mumbai
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Shah SR, Gupta AD, Sharma A, Joshi A, Desai D, Abraham P. Acute superior mesenteric vein thrombosis associated with factor V 'Leiden' gene mutation. J Assoc Physicians India 2003; 51:611-3. [PMID: 15266932] [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] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
OBJECTIVES To study thrombophilia states in Indian patients with acute spontaneous superior mesenteric vein thrombosis (SMVT). METHODS Two men with this condition, a 56 year old and a 31 year old presenting with acute SMVT, demonstrated on CT scan, were subjected to a thrombophilia screen consisting of Protein C, S, antithrombin levels, lupus anticoagulant, anticardiolipin antibodies, fibrinogen levels, factor VIII levels, factor V 'Leiden' gene mutation, and paroxysmal nocturnal hematuria screen. RESULTS A thrombophilia screen showed factor V 'Leiden' gene mutation (heterozygous) in both cases. Additionally, the first patient had high fibrinogen levels and the second high factor VIII levels. Both patients are currently on long-term anticoagulation. CONCLUSION Factor V 'Leiden' gene mutation in association with other thrombophilic factors may predispose to spontaneous superior mesenteric vein thrombosis.
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Affiliation(s)
- S R Shah
- Section of GI Surgery, PD Hinduja National Hospital and Medical Research Centre, Mahim, Mumbai 400 016, India
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Abstract
Carboxylic and dicarboxylic acids (glycolic, oxalic, malonic and succinic) have been extracted with tetrahydrofuran (THF) and H2O from large synthetic MgO crystals, crushed to a medium fine powder. The extracts were characterized by infrared spectroscopy and 1H-NMR. The THF extracts were derivatized with tert-butyldimethylsilyl (t-BDMS) for GC-MS analysis. A single crystal separated from the extract was used for an x-ray structure analysis, giving the monoclinic unit cell, space group P21/c with ao = 5.543 A, bo = 8.845 A, co = 5.086 A, and beta = 91.9 degrees, consistent with beta-succinic acid, HOOC(CH2)COOH. The amount of extracted acids is estimated to be of the order of 0.1 to 0.5 mg g-1 MgO. The MgO crystals from which these organic acids were extracted grew from the 2860 degrees C hot melt, saturated with CO/CO2 and H2O, thereby incorporating small amounts of the gaseous components to form a solid solution (ss) with MgO. Upon cooling, the ss becomes supersaturated, causing solute carbon and other solute species to segregate not only to the surface but also internally, to dislocations and subgrain boundaries. The organic acids extracted from the MgO crystals after crushing appear to derive from these segregated solutes that formed C-C, C-H and C-O bonds along dislocations and other defects in the MgO structure, leading to entities that can generically be described as (HxCyOz)n-. The processes underlying the formation of these precursors are fundamental in nature and expected to be operational in any minerals, preferentially those with dense structures, that crystallized in H2O-CO2-laden environments. This opens the possibility that common magmatic and metamorphic rocks when weathering at the surface of a tectonically active planet like Earth may be an important source of abiogenically formed complex organic compounds.
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Affiliation(s)
- F Freund
- SETI Institute, NASA Ames Research Center, Moffett Field, CA 94035-1000, USA.
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Ismail SM, Gupta AD. 20-Hydroxyecdysone mediated activation of larval haemolymph protein uptake by fat body cells of Corcyra cephalonica (Insecta). Biochem Int 1990; 22:261-8. [PMID: 2090095] [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] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Evidence is presented here to show that 20-hydroxyecdysone is essential for the activation of the larval fat body for differential uptake of larval haemolymph proteins (LHPs). By using radiolabelled LHPs it is shown that the fat body cells of Corcyra cephalonica selectively incorporate LHPs during late-larval and prepupal development. Fluorographic analysis of the labelled fat body proteins from prepupal stage separated on sodium dodecyl-sulphate polyacrylamide gels suggests that the LHPs are sequestered without any degradation. Although, during the last larval instar the uptake of all the three LHPs (LHP 1, LHP 2 and LHP 3) by the fat body cells is very low, 20-hydroxyecdysone treatment of early, mid or late-last instars causes a significant increase in uptake of all the three LHPs. However, the response to hormone treatment was more pronounced in late-last instar when compared to early and mid-last instar.
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Affiliation(s)
- S M Ismail
- School of Life Sciences, University of Hyderabad, India
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Abstract
There is a wealth of nursing information available in multiple formats (journal articles, books, audiovisuals, computer software, pamphlets, dissertations, etc.). But the resources are not readily available to help the nurse identify needed materials quickly and easily. Current access to nursing journal articles and books is evaluated in detail; the need to collect and organize other types of nursing information is outlined. Better control of nursing information is a must if nurses are to take their place alongside other health care professionals.
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Cotner T, Gupta AD, Papayannopoulou T, Stamatoyannopoulos G. Characterization of a novel form of transferrin receptor preferentially expressed on normal erythroid progenitors and precursors. Blood 1989; 73:214-21. [PMID: 2462936] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
A panel of monoclonal antibodies (MoAbs) against cell surface proteins of early BFUe progeny was characterized. Five of these antibodies (Abs) reacted with normal erythroid, but not myeloid, bone marrow cells. Each of the five antibodies, typified by Ab 69.20, immunoprecipitated a dimeric complex of 185,000, which is composed of two identical disulfide-bonded subunits. This antigen had affinity for transferrin, and was essentially identical in biochemical characteristics to transferrin receptors precipitated with the well-characterized MoAbs OKT9 and 5E9. However, this form of transferrin receptor lacked both the OKT9 and 5E9 antigenic determinants and, moreover, the 69.20 epitope was absent from the conventional transferrin receptor, as defined by Abs OKT9 and 5E9. Modulation experiments demonstrated that both 69.20 and OKT9 modulated large, virtually independent populations of transferrin receptors. Both forms of transferrin receptor appeared to be derived from the product of a single gene, but the form defined by MoAb 69.20 apparently predominates in cells of the erythroid lineage and some transformed cell types that manifest a special requirement for iron. These data suggest that cells with a high iron requirement synthesize two forms of transferrin receptor, possibly by means of differential mRNA splicing or by posttranslational modification of the transferrin receptor.
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Affiliation(s)
- T Cotner
- Department of Pediatrics, University of Washington, Seattle
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Abstract
Eight cases each of erythroleukemia (AML-M6) and erythroblastic crisis of chronic granulocytic leukemia (CGLBC-E) were immunophenotyped with the help of a panel of lineage-associated monoclonal antibodies (McAbs). The latter included those reactive with erythroid progenitor (BFU-E and CFU-E) and erythroid precursors at different stages of maturation. In six of eight cases of AML-M6, erythroblasts revealed an immature phenotype, as evident from reactivity of the blast cells with McAbs directed against the earlier stages of erythroid maturation. One case had the phenotype of CFU-E, and in the remaining case of AML-M6 the erythroblasts showed a "mature" surface antigenic profile. This immunophenotypic spectrum was unrelated to the morphologic maturity of the erythroblasts. In two cases of CGLBC-E, an early erythroblastic phenotype was observed, while in as many cases a "mature" phenotype was present. Four of eight cases, however, revealed a mixed, erythroid plus myeloid phenotype. In one of the four cases, two separate blast populations, which represented erythroblasts and myeloblasts, could be identified. In the remaining three cases the blasts were morphologically homogeneous and undifferentiated. High incidence of HLA-DR positivity in the latter three cases suggests the primitive nature of blasts cells and their closeness to the putative "bipotent" myeloid stem cell. Our study has shown phenotypic heterogeneity of blast cells in AML-M6 and CGLBC-E.
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Affiliation(s)
- A D Gupta
- Division of Laboratory Medicine, Tata Memorial Hospital, Bombay, India
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Gupta AD, Samoszuk MK, Papayannopoulou T, Stamatoyannopoulos G. SFL 23.6: a monoclonal antibody reactive with CFU-E, erythroblasts, and erythrocytes. Blood 1985; 66:522-6. [PMID: 4027378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
A cytotoxic (IgG2b) monoclonal antibody (McAb) for a novel erythroid differentiation antigen was generated by hyperimmunizing young mice with mononuclear cells obtained from livers of 20- to 22-week-old fetuses. This McAb, designated SFL 23.6, shows an extremely well-defined reactivity with the cells of the erythroid lineage at all stages of maturation as evident from the labeling of morphologically identifiable erythroid precursors and of erythrocytes present in peripheral blood, bone marrow, and fetal liver, and from its reactivity with culture-derived erythroblasts. The nonerythroid cells present in these and other tissue preparations were not labeled by SFL 23.6. The erythroid lineage specificity of McAb SFL 23.6 was confirmed by a cell-sorting experiment in which 97% of the cells in the fluorescent fraction sorted from SFL 23.6-treated bone marrow cells were erythroid precursors at various stages of maturation. Complement-mediated cytotoxicity and progenitor cell-sorting experiments showed that most (greater than 90%) of the late erythroid progenitors (CFU-E) and only a small proportion of the early erythroid progenitors (BFU-E) express the antigenic determinant identified by SFL 23.6. The myeloid progenitors (CFU-GM) and multilineage progenitors (CFU-GEMM) were negative for the SFL 23.6 antigenic determinant. The antigen recognized by SFL 23.6 has not been determined as yet. Because of the pattern of its reactivity and its dependence on sialic acid residues, the possibility of its relationship to glycophoria A was entertained. However, previous work using antiglycophorin McAbs (R-10) has shown that this determinant is not expressed in CFU-E. Therefore, among the erythroid lineage-specific McAbs described thus far, SFL 23.6 is unique in its reactivity with CFU-E and the mature erythron. Reagents with such specificity may be useful in studies of erythroid differentiation and commitment.
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Fishel CC, Graham KE, Greer DM, Gupta AD, Lockwood DK, Prime EE. CINAHL list of subject headings: a nursing thesaurus revised. Bull Med Libr Assoc 1985; 73:153-9. [PMID: 3995203 PMCID: PMC227572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The rationale and methods for revising the thesaurus of one of the major health sciences indexing tools are discussed. Computer production of the Cumulative Index to Nursing & Allied Health Literature and the possibility of online access mandated a revision of the list of subject headings. CINAHL has maintained a policy of responding to user needs and to changes in the nursing and allied health literature, and user input was encouraged during revision of the thesaurus. The methods of structural revision are described, and major changes in the thesaurus are detailed. Modification of the thesaurus is expected to have a far-reaching impact on the retrieval of information in nursing and allied health. Nursing and Allied Health (CINAHL) is now available online through DIALOG (file 218) and BRS (access code NAHL).
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Gupta AD, Barbhaya SA, Anita PK, Shetty PA. Clinical & prognostic significance of blast cell morphology & cytochemistry in acute non-myelogenous leukaemia. Indian J Med Res 1983; 78:828-35. [PMID: 6674172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
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Gupta AD, Vakil RF, Aga R, Shetty PA. Reversal to fetal erythropoiesis in acute myelogenous leukemia. Indian J Cancer 1983; 20:166-8. [PMID: 6197353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Abstract
The presence of significant methemoglobinemia in a large number (79%) of cases of leukemia prompted us to look into the evidence for oxidative injury to the other red cell constituents, e.g. the cell membrane. Forty-five per cent of cases showed increased malonyldialdehyde (MDA) levels indicating in vivo peroxidation of membrane lipids in leukemia patients. Red cell superoxide dismutase (SOD) activity was reduced in 25% of cases while plasma alpha-tocopherol levels were markedly low in 68% of patients. The presence of an inverse correlation between MDA levels and SOD and tocopherol levels in a large number of cases suggested that the red cells in leukemia lack the ability to counter increased oxidative stress. Low hemoglobin content of the red cells in these patients seemed to contribute to the oxidative injury to the membrane by rendering the latter more accessible to the oxidants. While methemoglobinemia may enhance tissue hypoxia, membrane lipid peroxidation could explain the shortened erythrocyte life-span and anemia in leukemia.
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Hales BJ, Gupta AD. Orientation of the bacteriochlorophyll triplet and the primary ubiquinone acceptor of Rhodospirillum rubrum in membrane multilayers determined by ESR spectroscopy (I). Biochim Biophys Acta 1979; 548:276-86. [PMID: 228709 DOI: 10.1016/0005-2728(79)90135-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Chromatophores from Rhodospirillum rubrum were oriented as multilayers on quartz slides under reducing conditions. Irradiation of these multilayers in the resonance cavity of an ESR spectrometer at 6 K yielded the spectrum of the bacteriochlorophyll dimer triplet. The relative intesities of the main six lines of the triplet were dependent on the angle subtended by the direction of the external magnetic field with plane of the multilayers. The angular dependence of the intensities of these transitions can best be interpreted in terms of one of the principal axes of the triplet lying along the plane of the membrane while the other two axes are titled 10--20 degrees away from the parallel to and normal to the membrane directions. If we assume the porphyrin planes of the dimer to be parallel and the largest splitting of the triplet transitions to correspond to those transitions in a direction normal to this plane, then these data imply that the dimer planes are nearly perpendicular to the membrane plane. Purified iron-depleted phototrap complexes were similarly oriented in reconstituted phosphatidylcholine multilayers and the angular dependence of the light-induced spectrum recorded at room temperature. A computer analysis of this angular dependence suggests that the plane of the primary ubiquinone acceptor molecule is parallel to the plane of the membrane and therefore perpendicular to the donor.
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Abstract
Chronic administration of ethanol failed to a stimulate the hepatic rate of cholesterol synthesis in meal-fed rats. In contrast, chronic ethanol feeding caused a 50% inhibition in the rate of incorporation of [4-14C] cholesterol to bile acids in the bile-duct cannulated rats. It is, therefore, suggested that the decreased rate of cholesterol degradation to bile acids may play an important role in ethanol-induced accumulation of cholesterol in liver.
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Gupta AD. Post partum programme--its objectives and implementation. J Indian Med Assoc 1975; 64:297-300. [PMID: 1184976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Das NC, Gupta AD. Fertility in India--trends, differentials, implications. Indian J Public Health 1974; 18:138-48. [PMID: 4466804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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Gupta AD. Human genetics and the practitioner. J Indian Med Assoc 1970; 54:203-4. [PMID: 5446077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Majumdar M, Gupta AD. Marriage trends and their demographic implications. Sankhya Ser B 1969; 31:491-500. [PMID: 12278391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
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Gupta AD, Basu DP, Bagchi AK. Subarachnoid haemorrhage. Indian Heart J 1969; 21:48-54. [PMID: 5783198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
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