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Weng M, Schumacher M. Practical experience of digital twin implementation in an industrial furnace. CHEM-ING-TECH 2022. [DOI: 10.1002/cite.202255411] [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: 11/08/2022]
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Deodhar A, Gensler LS, Sieper J, Clark M, Calderon C, Wang Y, Zhou Y, Leu JH, Campbell K, Sweet K, Harrison DD, Hsia EC, Heijde D, Ariel F, Asnal CA, Berman A, Citera G, Rodriguez G, Savio VG, Bird P, Griffiths H, Nicholls D, Rischmueller M, Zochling J, De Vlam K, Malaise M, Toukap AN, Van den Bosch F, Vanhoof J, Bonfiglioli R, Keiserman M, Scotton AS, Xavier R, Ximenes AC, Atanasov A, Goranov I, Kazmin I, Licheva RN, Nikolov N, Oparanov B, Stoilov R, Bessette L, Rodrigues J, Bortilik L, Dokoupilova E, Dvoarak Z, Galatikova D, Nemec P, Podrazilova L, Simkova G, Stejfova Z, Moravcova R, Vitek P, Cantagrel A, Baillet A, Banneville B, Combe B, Breban M, Nguyen M, Goupille P, Braun J, Everding A, Kekow J, Koenig R, Rubbert‐Roth A, Witte T, Bartha A, Drescher E, Kerekes K, Kovacs A, Pulai J, Rojkovich B, Szanto S, Toth E, Avila H, Torre IG, Irazoque F, Maradiaga M, Pacheco C, Brzosko M, Dudek A, Jeka S, Krogulec M, Kwiatkowska B, Wiland P, Wojciechowski R, Zielinska A, Santos H, Bugrova O, Christyakov V, Gorbunov V, Ilivanova E, Zemerova E, Kamalova R, Kameneva T, Macievskaya G, Marusenko I, Maslyansky A, Myasoedova S, Myasoutova L, Nemtsov B, Nesmeyanova O, Plaksina T, Pokrovskaya T, Polyakova S, Rebrov A, Savina L, Smakotina S, Stanislav M, Ukhanova O, Vinogradova I, Zonova E, Baek HJ, Kim T, Lee C, Lee S, Lee S, Lee S, Park S, Song Y, Suh C, Ramos JA, Blanco FJ, Collantes E, Diaz MC, Vivar MLG, Gratacos J, Juanola X, Chen D, Chen H, Chen K, Chen Y, Chiu Y, Luo S, Tsai S, Tseng J, Wei C, Weng M, Abrahamovych O, Reshotko D, Golovchenko O, Hospodarsky I, Iaremenko O, Levchenko O, Dudnyk O, Garmish O, Grishyna O, Protsenko G, Rekalov D, Smiyan S, Stanislavchuk M, Trypilka S, Tseluyko V, Turianytsia S, Vasylets V, Virstyuk N, Kleban Y, Ciurtin C, Gaffney K, Gunasekera W, Mackay K, Packham J, Sengupta R, Tahir H, Aelion J, Bennett R, Deodhar A, Gonzalez‐Paoli J, Griffin RM, Grisanti M, Mallepalli J, Peters E, Schechtman J, Singhal A. Three Multicenter, Randomized, Double‐Blind, Placebo‐Controlled Studies Evaluating the Efficacy and Safety of Ustekinumab in Axial Spondyloarthritis. Arthritis Rheumatol 2018; 71:258-270. [DOI: 10.1002/art.40728] [Citation(s) in RCA: 173] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 09/13/2018] [Indexed: 12/12/2022]
Affiliation(s)
| | | | | | - Michael Clark
- Janssen Research & Development, LLC Spring House Pennsylvania
| | - Cesar Calderon
- Janssen Research & Development, LLC Spring House Pennsylvania
| | - Yuhua Wang
- Janssen Research & Development, LLC Spring House Pennsylvania
| | - Yiying Zhou
- Janssen Research & Development, LLC Spring House Pennsylvania
| | - Jocelyn H. Leu
- Janssen Research & Development, LLC Spring House Pennsylvania
| | - Kim Campbell
- Janssen Research & Development, LLC Spring House Pennsylvania
| | - Kristen Sweet
- Janssen Research & Development, LLC Spring House Pennsylvania
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Abstract
Cleft palate, a common congenital deformity, can arise from disruptions in any stage of palatogenesis, including palatal shelf growth, elevation, adhesion, and fusion. Paired box gene 9 (Pax9) is recognized as a vital regulator of palatogenesis with great relevance to cleft palate in humans and mice. Pax9-deficient murine palatal shelves displayed deficient elongation, postponed elevation, failed contact, and fusion. Pax9 is expressed in epithelium and mesenchyme, exhibiting a dynamic expression pattern that changes according to the proceeding of palatogenesis. Recent studies highlighted the Pax9-related genetic interactions and their critical roles during palatogenesis. During palate growth, PAX9 interacts with numerous molecules and members of pathways (e.g., OSR2, FGF10, SHOS2, MSX1, BARX1, TGFβ3, LDB1, BMP, WNT β-catenin dependent, and EDA) in the mesenchyme and functions as a key mediator in epithelial-mesenchymal communications with FGF8, TBX1, and the SHH pathway. During palate elevation, PAX9 is hypothesized to mediate the time point of the elevation event in the anterior and posterior parts of the palatal shelves. The delayed elevation of Pax9 mutant palatal shelves probably results from abnormal expressions of a series of genes ( Osr2 and Bmpr1a) leading to deficient palate growth, abnormal tongue morphology, and altered hyaluronic acid distribution. The interactions between PAX9 and genes encoding the OSR2, TGFβ3, and WNT β-catenin-dependent pathways provide evidence that PAX9 might participate in the regulation of palate fusion. This review summarizes the current understanding of PAX9’s functions and emphasizes the interactions between PAX9 and vital genes during palatogenesis. We hope to provide some clues for further exploration of the function and mechanism of PAX9, especially during palate elevation and fusion events.
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Affiliation(s)
- R. Li
- Department of Orthodontics, Ninth People’s Hospital, School of Stomatology, Shanghai Key Laboratory of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Z. Chen
- Department of Orthodontics, Ninth People’s Hospital, School of Stomatology, Shanghai Key Laboratory of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Q. Yu
- Department of Orthodontics, Ninth People’s Hospital, School of Stomatology, Shanghai Key Laboratory of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - M. Weng
- Department of Orthodontics, Ninth People’s Hospital, School of Stomatology, Shanghai Key Laboratory of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Z. Chen
- Department of Orthodontics, Ninth People’s Hospital, School of Stomatology, Shanghai Key Laboratory of Stomatology, Shanghai Jiao Tong University, Shanghai, China
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Zhang GX, Weng M, Wang MD, Bai WJ. Autologous dermal graft combined with a modified degloving procedure for penile augmentation in young adults: a preliminary study. Andrology 2016; 4:927-31. [PMID: 27115979 DOI: 10.1111/andr.12192] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [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: 11/26/2015] [Revised: 01/28/2016] [Accepted: 03/03/2016] [Indexed: 11/30/2022]
Abstract
In order to evaluate the effect of penile enhancement, we retrospectively reviewed the data of the patients operated with autologous dermal graft implantation combined with a modified penile degloving procedure. The patients with the complaints of small penis, asking for penile augmentation, and normal erectile function were psychologically screened and enrolled. Data of follow-up visit including patient demographics, medical history, surgical procedure, patient-reported outcomes were analysed. In all, 30 eligible persons were operated. After degloving of the penis, the suspensory ligament was incised and the tunica albuginea was fixed to the proximal tunica dartos at the penile base. Then, the dermis graft was implanted on the dorsal surface of the tunica albuginea. The file of follow-up visit was available in 17 (57%) patients. The mean age was 23.7 years (19-35 years) and the mean follow-up was 13 months (range, 4-24 months). During the follow-up period, the average gain in the penis length was 2.7 cm in flaccid and 0.8 cm in erection, respectively. And the average gain in the penis circumference was 1.5 cm in flaccid and 1.2 cm in erection, respectively. Also, psychosexual sexual self-esteem and confidence of the patients were significantly improved (p < 0.001). Overall, 13 (76%) patients reported satisfaction with the penile appearance. We believe that the surgery is both safe and effective in the enhancement of the penis, however, further clinical studies with a larger patient population are necessary.
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Affiliation(s)
- G-X Zhang
- Department of Urology, Peking University People's Hospital, Beijing, China
| | - M Weng
- Department of Urology, Second Hospital of Beijing Armed Police Corps, Beijing, China
| | - M-D Wang
- Department of Urology, Second Hospital of Beijing Armed Police Corps, Beijing, China
| | - W-J Bai
- Department of Urology, Peking University People's Hospital, Beijing, China
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Weng M, Baron DM, Bloch KD, Luster AD, Lee JJ, Medoff BD. Eosinophils are necessary for pulmonary arterial remodeling in a mouse model of eosinophilic inflammation-induced pulmonary hypertension. Am J Physiol Lung Cell Mol Physiol 2011; 301:L927-36. [PMID: 21908591 DOI: 10.1152/ajplung.00049.2011] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
There is increasing evidence that inflammation plays a pivotal role in the pathogenesis of some forms of pulmonary hypertension (PH). We recently demonstrated that deficiency of adiponectin (APN) in a mouse model of PH induced by eosinophilic inflammation increases pulmonary arterial remodeling, pulmonary pressures, and the accumulation of eosinophils in the lung. Based on these data, we hypothesized that APN deficiency exacerbates PH indirectly by increasing eosinophil recruitment. Herein, we examined the role of eosinophils in the development of inflammation-induced PH. Elimination of eosinophils in APN-deficient mice by treatment with anti-interleukin-5 antibody attenuated pulmonary arterial muscularization and PH. In addition, we observed that transgenic mice that are devoid of eosinophils also do not develop pulmonary arterial muscularization in eosinophilic inflammation-induced PH. To investigate the mechanism by which APN deficiency increased eosinophil accumulation in response to an allergic inflammatory stimulus, we measured expression levels of the eosinophil-specific chemokines in alveolar macrophages isolated from the lungs of mice with eosinophilic inflammation-induced PH. In these experiments, the levels of CCL11 and CCL24 were higher in macrophages isolated from APN-deficient mice than in macrophages from wild-type mice. Finally, we demonstrate that the extracts of eosinophil granules promoted the proliferation of pulmonary arterial smooth muscle cells in vitro. These data suggest that APN deficiency may exacerbate PH, in part, by increasing eosinophil recruitment into the lung and that eosinophils could play an important role in the pathogenesis of inflammation-induced PH. These results may have implications for the pathogenesis and treatment of PH caused by vascular inflammation.
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Affiliation(s)
- M Weng
- Pulmonary and Critical Care Unit, Massachusetts General Hospital, Boston, 02114, USA
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Hufschmidt M, Omer A, Weng M. CFD als Werkzeug zur Verbesserung eines Fließbett- Chlorierungsreaktors. CHEM-ING-TECH 2010. [DOI: 10.1002/cite.201050390] [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]
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Li M, Weng M, Tong K. Mechanism of regulating the expression of lambdaN gene by ribosomal protein at translational level. ACTA ACUST UNITED AC 2009; 41:29-36. [PMID: 18726268 DOI: 10.1007/bf02882703] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/1997] [Indexed: 10/22/2022]
Abstract
In ribosomal protein S12 mutant or L24 mutant the expression of lambdaN gene was depressed at translational level. To study its mechanism the lambdaN gene region of lambdaN -lacZ gene fusion was trimmed from its 5' end to 3' end with DNA exonuclease III (DNA exoIII) in order to alter the TIR (translational initiation region) and the coding region of lambdaN gene. After DNA sequencing 23 species of different lambdaN-lacZ fused genes were obtained. The beta-galactosidase activities of these deletants in ribosomal protein mutant were compared with that in wild type strain. The result indicated that (i) S12 mutant could affect 305 subunit's binding to the TIR of lambdaN gene messenger and cause the difficulty in forming 30s initiation complex and then decrease the efficiency of translational initiation; (ii) in S12 mutant the coding region of lambdaN gene also affected the expression lambdaN gene; (iii) in L24 mutant the inhibition of lambdaN gene expression was not related to translational initiation and the 5' end of the coding region of lambdaN gene, but related to the 3' end of lambdaN gene.
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Affiliation(s)
- M Li
- Institute or Genetics, Chinese Academy of Sciences, Beijing, China
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Hufschmidt M, Weng M. CFD-Berechnung von Gas-Feststoff-Strömungen mit hoher Beladung - Möglichkeiten und Grenzen. CHEM-ING-TECH 2009. [DOI: 10.1002/cite.200950480] [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: 11/05/2022]
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Modigell M, Schumacher M, Weng M. Kopplung von Strömungssimulation und thermochemischer Gleichgewichtsberechnung zur Modellierung reagierender Gas/Partikel-Strömungen in der Hochtemperaturverfahrenstechnik. CHEM-ING-TECH 2005. [DOI: 10.1002/cite.200590349] [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: 11/11/2022]
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Abstract
The Bacillus subtilis pur operon repressor (PurR) has a PRPP (5-phosphoribosyl 1-pyrophosphate) binding motif at residues 199-211. Two PurR PRPP binding region mutations (D203A and D204A) were constructed, and the effects on binding of repressor to the pur operon control site in vitro and on regulation of pur operon expression in vivo were investigated. PRPP significantly inhibited the binding of wild-type but not mutant PurR to pur operon control site DNA. In strains with the D203A and D204A mutations, pur operon expression in vivo was super-repressed by addition of adenine to the growth medium. These results support the role of PRPP in modulating the regulatory function of PurR in vivo. YabJ, the product of the distal gene in the bicistronic purR operon, is also required for PurR function in vivo.
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Affiliation(s)
- M Weng
- Institute of Genetics, Chinese Academy of Sciences, Beijing, PR China
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Weng M, Modigell M. 105. Fluiddynamische und thermochemische Simulation des Schmelzzyklons zur Hochtemperatur-Reststoffbehandlung. CHEM-ING-TECH 1999. [DOI: 10.1002/cite.3307109109] [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: 11/09/2022]
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Weng M, Li J, Gao H, Li M, Wang P, Jiang X. [Mutation induced by space conditions in Escherichia coli strains]. Space Med Med Eng (Beijing) 1998; 11:245-8. [PMID: 11543240] [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: 02/21/2023]
Abstract
To study the mutagenesis of microorganism under space conditions, three Escherichia coli strains CSH108, A2 and A3, were flown on board the Chinese recoverable satellite (JB1 - B9611020) in Oct . 1996. Three ways of sample boarding were designed . After recovery, survival and frequency of lacI- mutation and Arg+ reversion were determined in the flight strains. The results showed that: E. coli strains could survive after the flight conditions. The lacI- mutation frequency of A3 strain in the biocabin was sixty - seven times that of the ground control, the Arg+ reversion frequency of CSH108 in the lead chamber, was ten times that of the ground control; and among the revertants the mutation frequency of non-sense suppressor increased remarkably. The results indicate that the space conditions may greatly enhance the mutation frequency of certain genes in the microorganism and may provide an effective method for microorganism breeding.
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Affiliation(s)
- M Weng
- Institute of Genetics, Chinese Academy of Sciences, Beijing, China
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Zhang WG, Weng M, Pang SZ, Zhang MH, Yang HY, Zhao HX, Zhang ZY. A novel photosensitizer, 2-butylamino-2-demethoxy-hypocrellin A (2-BA-2-DMHA). 1. Synthesis of 2-BA-2-DMHA and its phototoxicity to MGC803 cells. J Photochem Photobiol B 1998; 44:21-8. [PMID: 9745725 DOI: 10.1016/s1011-1344(98)00101-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The reaction of hypocrellin A (HA) with n-butylamine in pyridine under reflux leads to the formation of 2-butylamino-2-demethoxy-hypocrellin A (2-BA-2-DMHA), which is illustrated by ultraviolet-visible absorption spectra, proton nuclear magnetic resonance spectra, infrared spectra and mass spectra. The product exhibits stronger red-light absorption and has a much higher photopotentiation factor than HA (i.e., more than 200 versus four at a dose of 4 J cm-2 of red light on human gastric adenocarcinoma MGC803 cells). The mechanism of phototoxicity of 2-BA-2-DMHA on MGC803 cells irradiated with red light (lamada = 600-700 nm) has also been studied. An examination of extracted cellular DNA by agarose gel electrophoresis shows that the DNA has degraded into fragments with lengths which are multiples of approximately 180-190 base pairs (i.e., oligonucleosome size), a biochemical marker of apoptosis. Transmission electron microscopy reveals chromatin condensation around the periphery of the nucleus, which is also characteristic of apoptosis. This study suggests that 2-BA-2-DMHA is a potential photosensitizer and that its photoxicity to MGC803 cells proceeds via apoptosis.
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Affiliation(s)
- W G Zhang
- Institute of Biophysics, Academia Sinica, Beijing, China
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Torpey BM, Ikeda K, Weng M, van der Heeden D, Chao EY, McFarland EG, Wang M. The deltoid muscle origin. Histologic characteristics and effects of subacromial decompression. Am J Sports Med 1998; 26:379-83. [PMID: 9617399 DOI: 10.1177/03635465980260030601] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The histologic characteristics of the deltoid muscle attachment to nine cadaveric acromia were studied using light microscopy. The deltoid muscle attaches to the anterior and lateral acromion primarily by direct tendinous attachment. The muscle attaches to the dorsal side of the acromion by periosteal fiber attachment. In the specimens studied, a hypothetical acromioplasty of 4 mm would release, on average, 41% of the direct fiber attachment, and a 6-mm acromioplasty would release 69% for all zones examined histologically. The functional and clinical effects of these findings are not known, but the deltoid muscle would be released by arthroscopic acromioplasty in areas where bone is removed.
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Affiliation(s)
- B M Torpey
- Section of Sports Medicine and Shoulder Surgery, Johns Hopkins University, Baltimore, Maryland 21093, USA
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Dou D, Wen Y, Weng M, Pei Y, Chen Y. [Minor saponins from leaves of Panax ginseng C.A. Meyer]. Zhongguo Zhong Yao Za Zhi 1997; 22:35-7, 62. [PMID: 10683909] [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: 02/15/2023]
Abstract
Five compounds were isolated from the leaves of Panax ginseng and characterized as 20(R)-protopanaxatriol, daucosterine, ginsenoside-F2, ginsenoside-F3 and majoroside-F4 on the basis of spectral analysis and chemical evidence. Among them, majoroside-F4 is obtained from plant for the first time.
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Affiliation(s)
- D Dou
- Department of Phytochemistry, Shenyang Pharmaceutical University
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Cai Y, Dong H, Weng M. [Obesity-hypoventilation syndrome]. Zhonghua Nei Ke Za Zhi 1996; 35:41-4. [PMID: 9275646] [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: 02/05/2023]
Abstract
5 cases with obesity-hypoventilaion syndrome were reported. The clinical manifestations were obesity, palpitation, dyspnea, lethargy, cyanosis, distention of cervical vein, edema, enlargement of liver and hypertension. All of them were initially diagnosed as chronic bronchitis or heart diseases. Pulmonary function test showed restrictive ventilative defect and hypercapnia with hypoxemia. Mouth oclusion pressure at 0.1 second was higher than the normal value. The response to CO2 was decreased. Hypertrophy of right heart was shown in ECG and X-ray film improvement in symptoms and blood gases analyses were found to be associated with body weight decrease in a follow up period of one year.
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Affiliation(s)
- Y Cai
- Zhongshan Hospital, Shanghai Medical University
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Abstract
Transcription of the Bacillus subtilis pur operon is repressed in response to a signal of excess adenine. We have purified the repressor protein and have identified, cloned, and overexpressed the purR regulatory gene that controls transcription initiation of the operon. B. subtilis purR encodes a 62-kDa homodimer that binds to the pur operon control region. The PurR binding site which overlaps the promoter encompasses approximately 110 bp. The protein-DNA interaction is inhibited by 5-phosphoribosyl 1-pyrophosphate. A mutation that deletes the repressor binding site or one that disrupts purR abolishes binding activity in vitro and repression of transcription in vivo in response to the excess adenine signal. These results lead to a model in which an excess-adenine signal is transmitted to PurR via the 5-phosphoribosyl 1-pyrophosphate pool. In addition, purR is autoregulated. There is no structural or mechanistic similarity between the B. subtilis and Escherichia coli purine repressors.
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Affiliation(s)
- M Weng
- Department of Biochemistry, Purdue University, West Lafayette, IN 47907, USA
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Tulp OL, Weng M. Effect of genetic dilution on development of diabetes, impaired glucose tolerance and in vitro glucose oxidation in LA/N-cp × SHR/N-cp F1 hybrid rats. ACTA ACUST UNITED AC 1992; 101:403-8. [PMID: 1348469 DOI: 10.1016/0300-9629(92)90553-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [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: 11/26/2022]
Abstract
1. To determine the effects of gene dilution on development of IGT, NIDDM and in vitro glucose oxidation, heterozygous lean LA/N-cp female and SHR/N-cp male rats were mated, and F1 offspring studied at periodic intervals to determine the prevalence of obese and diabetic traits. 2. Obesity occurred in 25% of offspring by 5 weeks of age, consistent with inheritance of the autosomal recessive cp trait. 3. IGT occurred in all obese male F1, 67% of obese female F1, and 18% of the lean male F1 rats by 5 months of age, and diabetes occurred in 80% of male obese and 17% of female obese rats from 6 months of age. Glycosuria occurred with glucose intolerance, and was more severe in rats with NIDDM than IGT. 4. Rates of in vitro glucose oxidation were greater in diaphragm and adipose tissue, and were greater in the presence of insulin (100 mu Units/ml) in obese female but not obese male F1 rats. 5. These results indicate that the development of glucose intolerance is more prominent in male than in female F1 rats, that the progression of IGT to NIDDM occurs later in life in the F1 hybrid than in the SHR/N-cp strain from which the diabetic trait was transmitted, and that genetic dilution of the diabetic trait via hybrid breeding results in a delay in the expression of NIDDM which is chronologically more similar to that which occurs in man.
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Affiliation(s)
- O L Tulp
- Department of Nutrition and Food Sciences, College of Arts and Sciences, Drexel University, Philadelphia, PA 19104
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Weng M, Pfeifer O, Krauss S, Lingens F, van Pée KH. Purification, characterization and comparison of two non-haem bromoperoxidases from Streptomyces aureofaciens ATCC 10762. J Gen Microbiol 1991; 137:2539-46. [PMID: 1783900 DOI: 10.1099/00221287-137-11-2539] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Two non-haem bromoperoxidases (BPO 1 and BPO 2) were purified from the 7-chlorotetracycline-producing strain Streptomyces aureofaciens ATCC 10762. Both enzymes showed azide-insensitive brominating activity, and bromide-dependent peroxidase activity. BPO 1 was a dimer (Mr 65,000) with subunits of identical size (Mr 31,000). The pI was estimated to be 4.5. The enzyme did not cross-react with antibodies raised against the non-haem bromoperoxidase (Mr 90,000) from S. aureofaciens Tü24, a strain that also produces 7-chlorotetracycline. The Mr of BPO 2 was estimated to be 90,000. The enzyme had three identical subunits (Mr 31,000), and its isoelectric point was 3.5, identical with that of the bromoperoxidase from S. aureofaciens Tü24. Moreover, BPO 2 was immunologically identical with the bromoperoxidase from S. aureofaciens Tü24, although both it and BPO 1 could be distinguished electrophoretically from the latter bromoperoxidase.
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Affiliation(s)
- M Weng
- Institut für Mikrobiologie, Universität Hohenheim, Stuttgart, FRG
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Szivek JA, Weng M, Karpman R. Variability in the torsional and bending response of a commercially available composite “Femur”. ACTA ACUST UNITED AC 1990. [DOI: 10.1002/jab.770010210] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Weng M, Makaroff CA, Zalkin H. Nucleotide sequence of Escherichia coli pyrG encoding CTP synthetase. J Biol Chem 1986; 261:5568-74. [PMID: 3514618] [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: 01/06/2023] Open
Abstract
The amino acid sequence of Escherichia coli CTP synthetase was derived from the nucleotide sequence of pyrG. The derived amino acid sequence, confirmed at the N terminus by protein sequencing, predicts a subunit of 544 amino acids having a calculated Mr of 60,300 after removal of the initiator methionine. A glutamine amide transfer domain was identified which extends from approximately amino acid residue 300 to the C terminus of the molecule. The CTP synthetase glutamine amide transfer domain contains three conserved regions similar to those in GMP synthetase, anthranilate synthase, p-aminobenzoate synthase, and carbamoyl-P synthetase. The CTP synthetase structure supports a model for gene fusion of a trpG-related glutamine amide transfer domain to a primitive NH3-dependent CTP synthetase. The major 5' end of pyrG mRNA was localized to a position approximately 48 base pairs upstream of the translation initiation codon. Translation of the gene eno, encoding enolase, is initiated 89 base pairs downstream of pyrG. The pyrG-eno junction is characterized by multiple mRNA species which are ascribed to monocistronic pyrG and/or eno mRNAs and a pyrG eno polycistronic mRNA.
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Ono B, Andou N, Weng M, Tong K. Effect of cysteine on chromate resistance in the yeast Saccharomyces cerevisiae. Chem Pharm Bull (Tokyo) 1986; 34:229-34. [PMID: 3516419 DOI: 10.1248/cpb.34.229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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