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Hellyer J, Padda S, Vali S, Das A, Sikora H, Husain Z, Kumar A, Abbasi T, Wakelee H. P1.15-02 Role of mTOR Inhibitor Everolimus in the Treatment of Metastatic Thymic Epithelial Tumors. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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2
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Husain Z, Lee NCJ, Eskander A, Park H, mehra S, Burtness B. Pathologic staging changes in oral cavity squamous cell carcinoma: Stage migration and implications for adjuvant treatment. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz252.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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3
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Shukri M, Min RM, Abdullah SS, Yusof RAM, Husain Z. Psychometric properties of the Malay version of motivation scales in drug treatment. Med J Malaysia 2019; 74:377-384. [PMID: 31649212] [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: 06/10/2023]
Abstract
INTRODUCTION In recognition of the role of motivation in drug use treatment, patient motivational screening instruments are needed for strategic planning and treatment. The aims of this study were to evaluate the reliability and validity of the Malay version of the Treatment Motivation Scale, and to compare the motivational levels of patients receiving substance abuse treatment with different modalities (inpatient vs. outpatient). The motivational scale consists of three scales: problem recognition, desire for help and treatment readiness. METHOD A convenience sample of 102 patients was recruited from four Cure and Care Service Centres in Malaysia. RESULTS Principal component analysis with varimax rotation supported two-factor solutions for each subscale: problem recognition, desire for help and treatment readiness, which accounted for 63.5%, 62.7% and 49.1% of the variances, respectively. The Cronbach's alpha coefficients were acceptable for the overall measures (24 items: ∝ = 0.89), the problem recognition scale (10 items; ∝ = 0.89), desire for help (6 items; ∝ = 0.64) and treatment readiness scale (8 items; ∝ = 0.60). The results also indicated significant motivational differences for different modalities, with inpatients having significantly higher motivational scores in each scale compared to outpatients. CONCLUSION The present study pointed towards the favourable psychometric properties of a motivation for treatment scale, which can be a useful instrument for clinical applications of drug use changes and treatment.
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Affiliation(s)
- M Shukri
- University Malaysia Terengganu, Faculty of Business, Economics and Social Development, Kuala Terengganu, Terengganu, Malaysia.
| | - R M Min
- University Malaysia Terengganu, Faculty of Business, Economics and Social Development, Kuala Terengganu, Terengganu, Malaysia
| | - S S Abdullah
- University Malaysia Terengganu, Faculty of Business, Economics and Social Development, Kuala Terengganu, Terengganu, Malaysia
| | - R A M Yusof
- University Malaysia Terengganu, Faculty of Business, Economics and Social Development, Kuala Terengganu, Terengganu, Malaysia
| | - Z Husain
- University Malaysia Terengganu, Faculty of Business, Economics and Social Development, Kuala Terengganu, Terengganu, Malaysia
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Chowdhury Q, Begum F, Rahman M, Chowdhury F, Kabir S, Husain Z. EP1.03-34 Single Center Epidemiological Prevalence Study of Molecular Mutation in Bangladeshi Patients with Advanced Stage Non-Small Cell Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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5
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Husain Z, Safavi-Naeini P, Rasekh A, Razavi M, Collard CD, Anton JM, Tolpin DA. Anesthetic Management of Patients Undergoing Percutaneous Endocardial and Epicardial Left Atrial Appendage Occlusion. Semin Cardiothorac Vasc Anesth 2017. [DOI: 10.1177/1089253217714581] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Atrial fibrillation is the most common cardiac arrhythmia in adults affecting almost 6 million adults in the United States. The 2 most common comorbidities associated with atrial fibrillation are heart failure and thromboembolic events. Heart failure symptoms may be treated with rate control, antiarrhythmic medications or by catheter ablation. Unfortunately, despite optimal medical management, thromboembolic events still occur. Recently, there has been a great deal of interest and innovation in finding an alternative to chronic anticoagulation. Several percutaneous left atrial appendage occlusion devices have been developed over recent years, some of which have proven to be noninferior to anticoagulation in preventing strokes in atrial fibrillation patients. The 2 most widely used left atrial appendage occlusion devices are the WATCHMAN (Atritech Inc, Plymouth, MN, USA) and the LARIAT (SentreHEART, Palo Alto, CA, USA) devices. After a detailed description of the procedures, the anesthetic considerations of each procedure and management of specific adverse events are discussed within this review.
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Simcock R, Husain Z, Katz M. EP-1956: Twitter as a tool for radiotherapy medical education: The #radonc Journal Club. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)33207-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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7
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Bahar N, Roberts K, Stabile F, Mongillo N, Decker RD, Wilson LD, Husain Z, Contessa J, Williams BB, Flood AB, Swartz HM, Carlson DJ. SU-C-BRD-05: Non-Invasive in Vivo Biodosimetry in Radiotherapy Patients Using Electron Paramagnetic Resonance (EPR) Spectroscopy. Med Phys 2015. [DOI: 10.1118/1.4923800] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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8
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Bhatti S, Hakeem A, Dhanalakota S, Palani G, Husain Z, Jacobsen G, Ananthasubramaniam K. Prognostic value of regadenoson myocardial single-photon emission computed tomography in patients with different degrees of renal dysfunction. Eur Heart J Cardiovasc Imaging 2014; 15:933-940. [DOI: 10.1093/ehjci/jeu036] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
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Husain Z, Janniger EJ, Krysicka JA, Micali G, Schwartz RA. Body dysmorphic disorder: beyond skin deep. GIORN ITAL DERMAT V 2014; 149:447-452. [PMID: 25068234] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Body dysmorphic disorder (BDD) is a psychiatric illness that primarily affects adolescents and young adults of both sexes. Patients have a distorted self-image, which manifests as a preoccupation with slight or imagined defects in the face, nose, skin, hair or any part of the body that ultimately interferes with daily functioning. It is a relatively common yet long unrecognized problem. Patients often seek multiple physician assessments for their perceived defects and request cosmetic procedures. Early intervention can prevent a cycle of multiple surgeries, as the outcome is usually poor and may lead to exacerbation of symptoms, anger and litigation. BDD is a disabling, and even life-threatening, condition; it can lead to major depression and suicidal ideation. Selective serotonin reuptake inhibitors and cognitive behavioral therapy are the mainstay of treatment and are beneficial in most patients. A multidisciplinary approach is strongly recommended.
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Affiliation(s)
- Z Husain
- Dermatology, New Jersey Medical School Rutgers University, Newark, NJ, USA -
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Picone J, Deng J, Aneja S, Kim J, Husain Z. A Minimum Tumor to Spinal Cord Distance of 3-4 mm Is Needed for Optimal Planning of Spine SBRT. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ahmad M, Deng J, Lincoln H, Nguyen KT, Griffin ME, Chen Z, Nath S, Moran M, Husain Z, Nath R. SU-E-T-543: Build-Up Region Dosimetry of Megavoltage Photon Beams for Breast Radiotherapy. Med Phys 2013. [DOI: 10.1118/1.4814973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Ahmad I, Husain Z. Erratum to “Second order (F,α,ρ,d)-convexity and duality in multiobjective programming” [Inform. Sci. 176 (2006) 3094–3103]. Inf Sci (N Y) 2011. [DOI: 10.1016/j.ins.2011.03.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Pinto C, Smith AG, Larsen CE, Fernández-Viña M, Husain Z, Clavijo OP, Wang ZC, Nisperos B, Hansen JA, Alper CA, Yunis EJ. HLA-Cw*0409N is associated with HLA-A*2301 and HLA-B*4403-carrying haplotypes. Hum Immunol 2004; 65:181-7. [PMID: 14969773 DOI: 10.1016/j.humimm.2003.11.001] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2003] [Accepted: 11/21/2003] [Indexed: 10/26/2022]
Abstract
The associations of HLA-B*4402 and HLA-B*4403 with alleles of HLA-A and HLA-Cw were investigated in panels of HLA-B*4403 and HLA-B*4402 homozygous individuals and in selected individuals carrying HLA-Cw*04 and HLA-B*4403. Some of these individuals were genotyped and also carried (HLA-DRB1*0701, DQB1*02). Among the latter, we studied individuals carrying the conserved extended haplotype (CEH) [HLA-Cw*04, B*4403, FC31, DRB1*0701, DQB1*02]. Four different common (HLA-Cw*, B*44) haplotypes were identified that extended to the HLA-A locus: HLA-A*0201, Cw*0501, B*4402; HLA-A*2902, Cw*1601, B*4403; HLA-A*2301, Cw*0401, B*4403; and HLA-A*2301, Cw*0409N, B*4403. We identified eight unrelated examples of the allele HLA-Cw*0409N. HLA-A*2301 was associated with both HLA-Cw*0401 and HLA-Cw*0409N, suggesting that HLA-Cw*0409N may have arisen from a mutation in a CEH. We estimate that approximately 2 to 5 in 1000 Caucasian individuals carry the allele HLA-Cw*0409N, making it one of the most frequent null HLA alleles known to date. Our findings demonstrate the first example of three different HLA-Cw-determined subtypes of a common or CEH carrying a shared HLA-B allele, in this case HLA-B*4403.
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Affiliation(s)
- C Pinto
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA
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15
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Dubey DP, Husain Z, Levitan E, Zurakowski D, Mirza N, Younes S, Coronell C, Yunis D, Yunis EJ. The MHC influences NK and NKT cell functions associated with immune abnormalities and lifespan. Mech Ageing Dev 2000; 113:117-34. [PMID: 10708259 DOI: 10.1016/s0047-6374(99)00102-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The lifespans of H-2 congenic mice differ significantly. The B10.AKM (H-2m) strain has a median survival time (MST) of 15 months, whereas the B10.BR (H-2k) strain has an MST of 24 months. It was previously shown that B10.AKM mice at 13-15 months of age have immunological function comparable to those of B10.BR mice at 22-26 months of age. These functions include: a low proliferative response, reduced levels of intracellular calcium release [Ca2+]i, and an increase in the frequency of memory helper T-cells (CD4+ CD44hiCD45RBlo). In this report similar deficiencies were demonstrated in B10.AKM mice at 2-4 months of age and show that activated spleen NK1.1+CD4+ T (NKT) cells from young B10.AKM mice produce a significantly higher level of IL-4 but a lower level of IFN-gamma as compared to NKT cells from B10.BR mice of the same age. Also, the cytotoxic activity of natural killer (NK) cells from spleens of young (2-4 months) as well as adult (12-16 months) B10.AKM mice is significantly lower (P < 0.01) than that of NK cells from B10.BR mice. These findings suggest that the NKT activity in young B10.AKM mice is a factor for the early onset of immune dysfunction leading to a shorter lifespan.
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Affiliation(s)
- D P Dubey
- Children's Hospital, Harvard Medical School, Boston, MA 02115, USA.
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16
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Nusbaum C, Slonim DK, Harris KL, Birren BW, Steen RG, Stein LD, Miller J, Dietrich WF, Nahf R, Wang V, Merport O, Castle AB, Husain Z, Farino G, Gray D, Anderson MO, Devine R, Horton LT, Ye W, Wu X, Kouyoumjian V, Zemsteva IS, Wu Y, Collymore AJ, Courtney DF, Tam J, Cadman M, Haynes AR, Heuston C, Marsland T, Southwell A, Trickett P, Strivens MA, Ross MT, Makalowski W, Xu Y, Boguski MS, Carter NP, Denny P, Brown SD, Hudson TJ, Lander ES. A YAC-based physical map of the mouse genome. Nat Genet 1999; 22:388-93. [PMID: 10431246 DOI: 10.1038/11967] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A physical map of the mouse genome is an essential tool for both positional cloning and genomic sequencing in this key model system for biomedical research. Indeed, the construction of a mouse physical map with markers spaced at an average interval of 300 kb is one of the stated goals of the Human Genome Project. Here we report the results of a project at the Whitehead Institute/MIT Center for Genome Research to construct such a physical map of the mouse. We built the map by screening sequenced-tagged sites (STSs) against a large-insert yeast artificial chromosome (YAC) library and then integrating the STS-content information with a dense genetic map. The integrated map shows the location of 9,787 loci, providing landmarks with an average spacing of approximately 300 kb and affording YAC coverage of approximately 92% of the mouse genome. We also report the results of a project at the MRC UK Mouse Genome Centre targeted at chromosome X. The project produced a YAC-based map containing 619 loci (with 121 loci in common with the Whitehead map and 498 additional loci), providing especially dense coverage of this sex chromosome. The YAC-based physical map directly facilitates positional cloning of mouse mutations by providing ready access to most of the genome. More generally, use of this map in addition to a newly constructed radiation hybrid (RH) map provides a comprehensive framework for mouse genomic studies.
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Affiliation(s)
- C Nusbaum
- Whitehead Institute for Biomedical Research, Cambridge, Massachusetts 02142, USA
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17
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Discafani CM, Carroll ML, Floyd MB, Hollander IJ, Husain Z, Johnson BD, Kitchen D, May MK, Malo MS, Minnick AA, Nilakantan R, Shen R, Wang YF, Wissner A, Greenberger LM. Irreversible inhibition of epidermal growth factor receptor tyrosine kinase with in vivo activity by N-[4-[(3-bromophenyl)amino]-6-quinazolinyl]-2-butynamide (CL-387,785). Biochem Pharmacol 1999; 57:917-25. [PMID: 10086326 DOI: 10.1016/s0006-2952(98)00356-6] [Citation(s) in RCA: 81] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
It has been shown previously that 4-anilino quinazolines compete with the ability of ATP to bind the epidermal growth factor receptor (EGF-R), inhibit EGF-stimulated autophosphorylation of tyrosine residues in EGF-R, and block EGF-mediated growth. Since millimolar concentrations of ATP in cells could reduce the efficacy of 4-anilino quinazolines in cells and the activity of these compounds would not be sustained once they were removed from the body, we reasoned that irreversible inhibitors of EGF-R might improve the activity of this series of compounds in animals. Molecular modeling of the EGF-R kinase domain was used to design irreversible inhibitors. We herein describe one such inhibitor: N-[4-[(3-bromophenyl)amino]-6-quinazolinyl]2-butynamide, known as CL-387,785. This compound covalently bound to EGF-R. It also specifically inhibited kinase activity of the protein (IC50 = 370+/-120 pM), blocked EGF-stimulated autophosphorylation of the receptor in cells (ic50 approximately 5 nM), inhibited cell proliferation (IC50 = 31-125 nM) primarily in a cytostatic manner in cell lines that overexpress EGF-R or c-erbB-2, and profoundly blocked the growth of a tumor that overexpresses EGF-R in nude mice (when given orally at 80 mg/kg/day for 10 days, daily). We conclude that CL-387,785 is useful for studying the interaction of small molecules with EGF-R and may have clinical utility.
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Affiliation(s)
- C M Discafani
- Oncology and Immunoinflammatory Research, Wyeth-Ayerst Research, Pearl River, NY 10965, USA
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18
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Haldi ML, Strickland C, Lim P, VanBerkel V, Chen X, Noya D, Korenberg JR, Husain Z, Miller J, Lander ES. A comprehensive large-insert yeast artificial chromosome library for physical mapping of the mouse genome. Mamm Genome 1996; 7:767-9. [PMID: 8854865 DOI: 10.1007/s003359900228] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- M L Haldi
- Whitehead/MIT Center for Genome Research, Whitehead Institute for Biomedical Research, 9 Cambridge Center, Cambridge, Massachusetts 02142, USA
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Kumar S, Tatke M, Husain Z. Chordoid meningioma associated with chronic subdural hematoma. Indian Pediatr 1996; 33:783-5. [PMID: 9057411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- S Kumar
- Department of Neurosurgery, G.B. Pant Hospital, New Delhi
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Dietrich WF, Miller J, Steen R, Merchant MA, Damron-Boles D, Husain Z, Dredge R, Daly MJ, Ingalls KA, O'Connor TJ. A comprehensive genetic map of the mouse genome. Nature 1996; 380:149-52. [PMID: 8600386 DOI: 10.1038/380149a0] [Citation(s) in RCA: 612] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The availability of dense genetic linkage maps of mammalian genomes makes feasible a wide range of studies, including positional cloning of monogenic traits, genetic dissection of polygenic traits, construction of genome-wide physical maps, rapid marker-assisted construction of congenic strains, and evolutionary comparisons. We have been engaged for the past five years in a concerted effort to produce a dense genetic map of the laboratory mouse. Here we present the final report of this project. The map contains 7,377 genetic markers, consisting of 6,580 highly informative simple sequence length polymorphisms integrated with 797 restriction fragment length polymorphisms in mouse genes. The average spacing between markers is about 0.2 centimorgans or 400 kilobases.
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Affiliation(s)
- W F Dietrich
- Whitehead/MIT Center for Genome Research, Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA
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Kwong YY, Husain Z, Biswas DK. c-Ha-ras gene mutation and activation precede pathological changes in DMBA-induced in vivo carcinogenesis. Oncogene 1992; 7:1481-9. [PMID: 1630811] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We have previously reported a stage-specific and sequential overexpression of the c-Ha-ras and c-erbB genes in 7, 12-dimethylbenzanthracene (DMBA)-induced in vivo carcinogenesis in hamster buccal pouch epithelium (HBPE). In this investigation, the immunoreactive protein product of the c-Ha-ras gene (p21 protein) was identified in HBPE cells, specifically in treated tissues and cultured cells established after 3 weeks of DMBA treatment. Microscopic examination did not show any histopathological changes in these tissues. The p21 protein was detected in a few selective cells, which were dispersed away from the more densely populated basal layer. The overexpression of the c-Ha-ras gene was accompanied by a point mutation of A----T in codon 61 (CAA), inducing an amino acid substitution from the wild-type glutamine to leucine in the peptide. The concurrent molecular modifications preceded any detectable histopathological changes. The cellular morphology and orientation in treated HBPE at this early stage was indistinguishable from the control tissue. Yet the genetic alterations, such as the point mutation and overexpression of the gene, were evident at the predysplastic stage. Amplification and overexpression of the second proto-oncogene, c-erbB, and its product, epidermal growth factor receptor (EGFR), were detected in HBPE cells at the later stages of extensive cell proliferation and invasion. By using double antibodies and two immunoreporter systems, we demonstrated overexpression of both c-Ha-ras and c-erbB genes in the same HBPE cells during this chemically induced in vivo carcinogenesis.
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Affiliation(s)
- Y Y Kwong
- Laboratory of Molecular Biology, Harvard School of Dental Medicine, Boston, Massachusetts 02115
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Aghi M, Husain Z, Pillai KK, Qadry JS, Balani DK, Imran M. Cardioprotective effect of cromakalim (potassium channel opener) in isoproterenol induced myocardial infarction in rats. Indian J Exp Biol 1992; 30:611-4. [PMID: 1459635] [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: 12/27/2022]
Abstract
Animals pretreated with cromakalim (1 mg/kg,po) along with isoproterenol (85 mg/kg,sc) showed less myocardial degenerative changes on histopathological examinations when compared with those treated with isoproterenol alone. Cromakalim's beneficial effects on myocardium were in dose-dependent manner. Administration of cromakalim (po) lowered significantly the serum LDH and SGOT and depleted intracytoplasmic glycogen as demonstrated by periodic schiff staining procedure. Increase in blood clotting time was highly significant (P less than 0.001). The results suggest cardioprotective effect of cromakalim in isoproterenol induced myocardial infarction.
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Affiliation(s)
- M Aghi
- Department of Pharmacology, Faculty of Pharmacy, Jamia Hamdard, New Delhi, India
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Husain Z, Pathak MA, Flotte T, Wick MM. Role of ultraviolet radiation in the induction of melanocytic tumors in hairless mice following 7,12-dimethylbenz(a)anthracene application and ultraviolet irradiation. Cancer Res 1991; 51:4964-70. [PMID: 1909931] [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: 12/29/2022]
Abstract
We examined the role of UVR (UV radiation) (UVA, 320-400 nm; UVB, 290-320 nm; and the combination of UVA and UVB) as a promoter in the induction of cutaneous melanoma. One hundred and seventy hairless mice (Skh-hr2), 6-8 weeks old, were treated in 8 groups: group I, DMBA [7,12-dimethylbenz(a)anthracene] plus UVA; group II, DMBA plus UVA plus UVB; group III, DMBA plus UVB; group IV, DMBA; group V, UVA; group VI, UVA plus UVB; group VII, UVB; group VIII, control. DMBA (0.5% solution) was applied once to promote the formation of dermal melanocytic nevus-like lesions while UVR treatments were conducted 3 times/week for 30 weeks. The mice were examined periodically for the development of multiple pigmented lesions, papillomas, squamous cell carcinomas, melanomas, and lymphomas. Treatment with DMBA plus UVA, DMBA plus UVB, and DMBA plus UVA plus UVB stimulated the development of multiple pigmented nevus-like lesions (85-100%) in mice of groups I, II, III, and IV. Upon necroscopy, 27-33% of animals in groups I, II, and III receiving UVR treatments developed clinically and histologically characterized melanomas. Treatment with DMBA alone did not produce melanomas. DMBA-treated animals in groups I, II, and III which received UVR treatments also developed lymphomas (21-50%). Animals treated with DMBA alone or those that received UVB or the combination of UVB plus UVA (without DMBA) developed only papillomas and squamous cell carcinomas (25-47%). Skin tumors were analyzed for the presence of point mutations in the ras gene. Polymerase chain reaction amplification of DNA and selective oligonucleotide hybridization revealed mutations in the 61st codon of the N-ras gene in the precursor nevus-like lesions and melanoma samples studied. This study suggests that UVR (both UVA and UVB) plays a role as a promoter in the stimulation of melanoma and lymphoma development in hairless mice.
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Affiliation(s)
- Z Husain
- Laboratory of Molecular Dermatologic Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts 02115
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Husain Z, FitzGerald GB, Wick MM. Comparison of cellular protooncogene activation and transformation-related activity of human melanocytes and metastatic melanoma. J Invest Dermatol 1990; 95:571-5. [PMID: 2121834 DOI: 10.1111/1523-1747.ep12505549] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Two cell lines (NH and HM1), established from patients with metastatic melanomas, were evaluated for the presence of activated cellular protooncogenes. Northern blot analysis demonstrated increased expression of the c-myc gene (from 9 to 14 times) in NH and HM1 cell lines by densitometric comparison with human melanocyte cell lines. Analysis of the expression of 13 additional cellular protooncogenes revealed either no detectable levels (c-fms, c-abl, v-src, c-erb A1, c-erb B, v-mos, TGF beta, and c-myb) or unaltered expression levels (cH-ras, N-ras, c-fos, and c-sis) in normal human melanocytes and metastatic melanomas. Elevated expression of the c-myc gene was also detected in two long-term cultured melanoma cell lines (RPMI 7951 and SKMEL-30). Analysis of c-myc expression by in situ hybridization in HM1 cells showed that expression was not localized to a sub-population of cycling cells and all cells were overexpressing c-myc mRNA. Differences in relative abundance of c-myc transcripts suggests a relationship with the ability of DNA from these cell lines to efficiently transform NIH 3T3 cells and form colonies on soft agar.
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MESH Headings
- Blotting, Northern
- Blotting, Southern
- Cell Adhesion
- Cell Transformation, Neoplastic/genetics
- Cell Transformation, Neoplastic/metabolism
- Cell Transformation, Neoplastic/pathology
- DNA, Neoplasm/genetics
- Gene Expression
- Gene Expression Regulation, Neoplastic
- Genes, myc/genetics
- Humans
- Melanocytes/metabolism
- Melanocytes/pathology
- Melanoma/genetics
- Melanoma/metabolism
- Melanoma/pathology
- Melanoma/secondary
- Nucleic Acid Hybridization
- Proto-Oncogene Proteins/genetics
- Proto-Oncogene Proteins/metabolism
- Proto-Oncogene Proteins c-fos
- Proto-Oncogene Proteins c-myc/genetics
- Proto-Oncogene Proteins c-myc/metabolism
- Proto-Oncogene Proteins p21(ras)/genetics
- Proto-Oncogene Proteins p21(ras)/metabolism
- Proto-Oncogenes/genetics
- Skin Neoplasms/genetics
- Skin Neoplasms/metabolism
- Skin Neoplasms/pathology
- Skin Neoplasms/secondary
- Transfection
- Tumor Cells, Cultured/metabolism
- Tumor Cells, Cultured/pathology
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Affiliation(s)
- Z Husain
- Laboratory of Molecular Dermatologic Oncology, Dana-Farber Cancer Institute, Boston, MA 02115
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Husain Z, Yang QM, Biswas DK. cHa-ras proto-oncogene. Amplification and overexpression in UV-B-induced mouse skin papillomas and carcinomas. Arch Dermatol 1990; 126:324-30. [PMID: 2178557 DOI: 10.1001/archderm.126.3.324] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The role of cellular proto-oncogene activation in shortwave UV light in the B range (UV-B)--induced skin carcinogenesis was investigated. Epidermal papillomas and carcinomas were induced on the depilated skin surface of Sencar mice with single-dose UV-B irradiation (7 x 10(4) J/m2). The tumors thus initiated were present in 18.8% of treated animals and were primarily benign papillomas, while a few (6 of 17) progressed to form squamous cell carcinomas. A 5- to 10-fold stimulation of cHa-ras gene expression in both papillomas and carcinomas was observed. Other cellular proto-oncogenes such as cKi-ras, c-myc, or c-fos specific messenger RNAs were not detected in these UV-B--induced skin tumors. Subsequent Southern blot analysis revealed a threefold to fivefold amplification of cHa-ras gene in skin papillomas and carcinomas. However, only the carcinoma and not the papilloma DNA induced foci in the classic NIH-3T3 transformation assay, suggesting that activation of cHa-ras gene alone is not sufficient to exhibit this phenotypic expression of transformed cells. The NIH-3T3 transformants exhibited (1) anchorage independent growth on soft agar, (2) tumor induction in athymic mice, and (3) overexpression and amplification of the cHa-ras gene. We propose that overexpression of a ras gene by gene amplification plays a role in the UV-B--induced skin carcinogenesis process.
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Affiliation(s)
- Z Husain
- Laboratory of Molecular Biology, Harvard School of Dental Medicine, Boston, Mass. 02115
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Husain Z, Fei YB, Roy S, Solt DB, Polverini PJ, Biswas DK. Sequential expression and cooperative interaction of c-Ha-ras and c-erbB genes in in vivo chemical carcinogenesis. Proc Natl Acad Sci U S A 1989; 86:1264-8. [PMID: 2493153 PMCID: PMC286668 DOI: 10.1073/pnas.86.4.1264] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The level of expression of several cellular protooncogenes is examined at different stages of 7,12-dimethylbenzanthracene (DMBA)-induced tumor development in hamster buccal pouch epithelium (HBPE). Results presented demonstrate overexpression of c-Ha-ras gene at a very early stage of tumor development, and this elevated level of expression of the gene persists throughout the tumorigenesis process. The expression of the cellular protooncogene c-erbB, on the other hand, can be detected only after 8-10 weeks of DMBA treatment of the tissue and increases with the progression of the disease. The overexpression of c-erbB gene can be correlated with the stage of extensive proliferation and subsequent invasion of the HBPE cells into the underlying connective tissue. This sequential pattern of stage-specific expression of the two cellular protooncogenes can be observed in (i) treated tissues, (ii) stage-representative cultured cells, and (iii) NIH 3T3 transformants derived with DNA from HBPE cells. The low-level expression of c-myc and c-sis genes detected in control tissues remains unaffected, while c-fos gene activity cannot be detected at any stage of tumor development. The overexpression of c-Ha-ras gene alone in HBPE cells derived from tissues treated for 5 weeks (DM5) is not sufficient to induce tumors in athymic mice, whereas expression of c-Ha-ras and c-erbB genes at later stages of tumor development (DM10 and HCPC cells) induce histopathologically defined epithelial cell carcinoma in athymic mice within 2-3 weeks. The sequential overexpression of c-Ha-ras and c-erbB genes in a stage-specific manner and their cooperative interaction in the DMBA-induced in vivo oral carcinogenesis have been demonstrated.
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Affiliation(s)
- Z Husain
- Laboratory of Molecular Biology, Harvard School of Dental Medicine, Boston, MA 02115
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Rood RP, Emmer E, Wesolek J, McCullen J, Husain Z, Cohen ME, Braithwaite RS, Murer H, Sharp GW, Donowitz M. Regulation of the rabbit ileal brush-border Na+/H+ exchanger by an ATP-requiring Ca++/calmodulin-mediated process. J Clin Invest 1988; 82:1091-7. [PMID: 2843567 PMCID: PMC303623 DOI: 10.1172/jci113665] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Brush-border vesicles purified from rabbit ileal villus cells were used to evaluate how Ca++/calmodulin (CaM) regulates the neutral linked NaCl absorptive process, part of which is a Na+/H+ exchanger. After freezing and thawing to allow incorporation of macromolecules into the vesicles, the effect of Ca++/CaM on brush-border Na+ uptake with an acid inside pH gradient, and on Na+/H+ exchange was determined. Freezing and thawing vesicles with 0.85 microM free Ca++ plus 5 microM exogenous CaM failed to alter Na+/H+ exchange as did the addition of exogenous ATP plus an ATP regenerating system, which was sufficient to elevate intravesicular ATP to 47 microM from a basal level of 0.4 microM. However, the combination of Ca++/CaM plus ATP inhibited Na+ uptake in the presence of an acid inside pH gradient and inhibited Na+/H+ exchange, while Na+ uptake in the absence of a pH gradient was not altered. This effect required a hydrolyzable form of ATP, and did not occur when the nonhydrolyzable ATP analogue, AMP-PNP, replaced ATP. Under the identical intravesicular conditions used for the transport studies, Ca++ (0.85 microM) plus exogenous CaM (5 microM), in the presence of magnesium plus ATP, increased phosphorylation of five brush-border peptides. These data are consistent with Ca++/CaM acting via phosphorylation to regulate the ileal brush-border Na+/H+ exchanger.
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Affiliation(s)
- R P Rood
- Tufts University School of Medicine, Boston, Massachusetts
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Singh YN, Hameed F, Khan R, Husain Z. Serum levels of 5'-nucleotidase, bilirubin, alkaline phosphatase and transaminase in liver diseases--a comparative study. INDIAN J PATHOL MICR 1987; 30:55-67. [PMID: 2824355] [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: 01/02/2023] Open
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Hasan A, Hameed F, Husain Z, Ansari MG. Serum ceruloplasmin in cirrhosis and chronic active hepatitis. INDIAN J PATHOL MICR 1985; 28:211-4. [PMID: 3835123] [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: 01/07/2023] Open
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Hasan MA, Hameed F, Husain Z, Ansari MG. Serum ceruloplasmin in infective hepatitis. INDIAN J PATHOL MICR 1985; 28:215-8. [PMID: 3835124] [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: 01/07/2023] Open
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Khan N, Hameed S, Tyagi SP, Husain Z. Serum cholinesterase and lactate dehydrogenase levels in cases of squamous cell carcinoma of oral cavity. INDIAN J PATHOL MICR 1984; 27:185-8. [PMID: 6530283] [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: 01/20/2023] Open
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Husain Z, Hameed F, Jamil AA. Serum ceruloplasmin in neonates. Indian Pediatr 1982; 19:829-32. [PMID: 7160875] [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: 01/23/2023]
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Husain Z, Runge LA, Jabbs JM, Hyla JA. Sulindac-induced Stevens-Johnson syndrome: report of 3 cases. J Rheumatol 1981; 8:176-9. [PMID: 7218253] [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: 01/24/2023]
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Husain Z, Runge LA. Treatment complications of rheumatoid arthritis with gold, hydroxychloroquine, D-penicillamine, and levamisole. J Rheumatol 1980; 7:825-30. [PMID: 6451692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
One hundred and twenty-five patients with active rheumatoid arthritis unresponsive to nonsteroidal antiinflammatory drugs were treated at the same center with 156 courses of either hydroxychloroquine (43), gold (29), D-penicillamine (40), or levamisole (44). Life table analysis was used to compare the risks of developing various side effects with treatment termination being the endpoint instead of death. Patients treated with levamisole had the highest risk of developing a complication (67%) and antimalarials the lowest (30%). In terms of long term acceptability, hydroxychloroquine showed fewer complications, gold and D-penicillamine were similar with rash and proteinuria being the main difficulties; however, levamisole caused the most frequent terminations mainly due to rash and leukopenia.
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Chopde CT, Brahmankar DM, Samra MA, Husain Z, Dorle AK. Interaction of antihistaminic agents with adrenoceptors. Indian J Med Res 1975; 63:201-10. [PMID: 2553] [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: 12/12/2022] Open
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