Polarized Ketone Inhibition of 1-Naphthyl Acetate Esterase in Azinphosmethyl-Resistant and -Susceptible Tufted Apple Bud Moths, Platynota idaeusalis (Walker): Novel Insecticide Synergists

2001 ◽  
Vol 69 (1) ◽  
pp. 48-62
Author(s):  
Christina Devorshak ◽  
R. Michael Roe
Keyword(s):  
Platynota Idaeusalis ◽  
Acetate Esterase ◽  
Naphthyl Acetate

Monocytic Leukemia in a Horse

1984 ◽  
Vol 21 (4) ◽  
pp. 394-398 ◽  
Author(s):  
E. Burkhardt ◽  
F. v. Saldern ◽  
B. Huskamp
Keyword(s):  
Electron Microscopy ◽  
Lymph Nodes ◽  
Light And Electron Microscopy ◽  
Leukemic Cells ◽  
Monocytic Leukemia ◽  
Impaired Performance ◽  
History Of ◽  
Acetate Esterase ◽  
Generalized Lymphadenopathy ◽  
Naphthyl Acetate

On clinical examination, a six-year-old Hassian gray gelding with a history of impaired performance, slight cough, colic, and edema of the ventral abdomen, prepuce and the legs had reduced skin turgor, pale mucous membranes, forced costoabdominal breathing, reduced venous return, enlarged lymph nodes, and splenomegaly. Hematologic findings revealed anemia, leukocytosis and a high percentage of monocytoid leukemic cells. Generalized lymphadenopathy, splenomegaly, ascites, hydrothorax, and a diffusely thickened gut wall were found at necropsy. Massive infiltration with monocytoid leukemic cells was detected in lymph nodes, spleen, bone marrow, liver, gut wall, kidneys, and choroid plexus. Incubation of living cells obtained from a leukocyte concentrate with latex particles revealed phagocytosis in the leukemic cells on light and electron microscopy. The leukemic cells also had a marked α-naphthyl-acetate and naphthol-AS-acetate esterase activity, but were only weakly positive to naphthol-AS-D-chloroacetate esterase. A very weak alkaline phosphatase activity only was demonstrated in a few leukemic cells. On scanning electron microscopy, the leukemic cells had prominent ruffles and ridge-like profiles. These features of the leukemic cells excluded lymphocytic and granulocytic leukemia, and monocytic leukemia was diagnosed.

scholarly journals Chromosome pattern in childhood acute nonlymphocytic leukemia (ANLL)

Blood ◽  
1982 ◽  
Vol 60 (2) ◽  
pp. 389-399 ◽  
Author(s):  
Y Kaneko ◽  
JD Rowley ◽  
HS Maurer ◽  
D Variakojis ◽  
JW Moohr
Keyword(s):  
Age Groups ◽  
Normal Karyotype ◽  
Chromosome Abnormalities ◽  
Host Susceptibility ◽  
Leukemic Cells ◽  
Karyotypic Analysis ◽  
Chromosome Pattern ◽  
Acetate Esterase ◽  
Alpha Naphthyl Acetate Esterase ◽  
Naphthyl Acetate

Abstract We studied the karyotype in 26 children with ANLL, which was diagnosed on the basis of the FAB classification. Clonal chromosome abnormalities were found in 21 of 26 patients. Four patients, including 3 with Down's syndrome, had AML(M1). Nine patients, including 3 with t(8;21), had AML(M2). All 3 patients with APL(M3) had t(15;17). Four patients had AMMOL(M4); 3 of these had a normal karyotype. Six patients had AMOL(M5); 5 and 11q rearrangements, and 3 of these had a break in 11q23. Only one patient had EL(M6), and he had a normal karyotype. One patient with t(11;19), classified as AML(M2) on Wright-Giemsa-stained cells, had a strong alpha-naphthyl acetate esterase reaction, indicating that the leukemic cells had a cytochemical feature characteristic of monocytes. Whereas t(8;21) and t(15;17) are uniquely associated with AML(M2) and APL(M3), respectively, the 11q rearrangements are also seen in AML(M1/M2), although they are more common in AMOL(M5) and AMMOL(M4). The case with t(11;19) suggests that cells with 11q rearrangements and with AML(M1/M2) may have both monocytic and granulocytic features. When we used our data and previous reports on 243 aneuploid patients (169 adults and 74 children) to correlate the chromosome abnormalities with patient age, we found differences in the chromosome pattern seen among various age groups. This suggests that different etiologic factors as well as changes in host susceptibility may influence the development of and the karyotypic pattern in the various types of leukemia. Moreover, the frequency of various chromosome abnormalities in childhood ANLL can provide a baseline for comparison of the frequency of the same abnormality in adults. The karyotypic analysis of childhood ANLL is important not only because of the information that can be obtained about childhood ANLL, but also because the data can provide substantial insight into the etiology of ANLL in adults.

Isoenzymes of naphthyl acetate esterase in senescing leaves of Festuca pratensis

1977 ◽  
Vol 16 (12) ◽  
pp. 1887-1889 ◽  
Author(s):  
Howard Thomas ◽  
Marian J. Bingham
Keyword(s):  
Festuca Pratensis ◽  
Acetate Esterase ◽  
Naphthyl Acetate
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