Search Criteria: Research Area is "Cardiovascular Research: Hypotriglyceridemia"

New Strains Under Development

JAX® Mice Strains

Stock
Number
Strain Name
 
Strain Description
Standard Supply
003008 B6;129S-Tnftm1Gkl/J
Level 4
Mice homozygous for the Tnftm1Gkl targeted mutation are viable and fertile. Development of both lymph nodes and Peyer's patches is normal, and homozygous mutant mice show no apparent phenotypic abnormalities. Homozygous mice completely lack splenic primary B cell follicles and cannot form organized follicular dendritic cell networks and germinal centers. TNF-deficient mice treated to induce skin carcinogenesis develop significantly less benign and malignant tumors than treated wildtype mice. Nonobese homozygous mutant mice show modest decreases in body weight, epididymal fat depot weight, and percent body fat (statistically significant in males at 28 weeks of age). Further characterization indicates that 28 week old male mutant mice display lower insulin, triglyceride, and leptin levels compared to wildtype controls. Characterization of TNF deficient homozygotes injected with gold-thioglucose (GTG) to induce hyperphagic obesity indicates that the presence of TNF does .....
For more information please see the full descriiption on the strain data sheet
002053 B6.129P2-Apobtm1Unc/J
Repository- Live
The Apobtm1Unc targeted mutation produces a truncated form of the apolipoprotein B protein (APOB70)and no apoB100 that is similar to human familial hypobetalipoproteinemia condition. Expression of apoB48 is not altered. Homozygous mice show greatly reduced levels of plasma APOB, beta-lipoproteins, and total cholesterol. They also have reduced plasma triglyceride concentrations, fasting chylomicronemia, and reduced high density lipoprotein (HDL) cholesterol. Homozygotes also have a high incidence of exencephaly and hydrocephaly. Heterozygous mice show a slight increase over wildtype in the incidence of hydrocephaly.
005540 B6.129S-Tnftm1Gkl/J
Repository- Live
Mice homozygous for the targeted mutation are viable and fertile. Development of both lymph nodes and Peyer's patches is normal, and homozygous mutant mice show no apparent phenotypic abnormalities. Homozygous mice completely lack splenic primary B cell follicles and cannot form organized follicular dendritic cell networks and germinal centers. TNF-deficient mice treated to induce skin carcinogenesis develop significantly less benign and malignant tumors than treated wildtype mice. Nonobese homozygous mutant mice show modest decreases in body weight, epididymal fat depot weight, and percent body fat (statistically significant in males at 28 weeks of age). Further characterization indicates that 28 week old male mutant mice display lower insulin, triglyceride, and leptin levels compared to wildtype controls. Characterization of TNF deficient homozygotes injected with gold-thioglucose (GTG) to induce hyperphagic obesity indicates that the presence of TNF does not affect the degree of obe .....
For more information please see the full descriiption on the strain data sheet
007682 B6.129X1-Apobtm1.1Zc/J
Repository- Live
Mice homozygous for this apoB38.9 allele (apoB38.9/38.9) are viable with impaired fertility, bearing a premature stop codon at residue 1767 of the targeted gene. As a result, homozygous plasma shows a truncated apoB38.9 as the sole apoB protein. Plasma from heterozygous (apoB+/38.9) mice have reduced apoB100 and apoB48 compared to wildtype, with apoB38.9 representing 20% of total circulating apoB. This apoB38.9 truncation affects both apoB100 and apoB48 metabolism in mice, and mimics human Familial Hypobetalipoproteinemia (FHBL). Homozygous and, to a lesser extent, heterozygous mice exhibit symptoms of FHBL due to impaired lipoprotein export system/VLDL secretion, including elevated hepatic triglyceride (TG), cholesterol and free fatty acids (FFA), with decreased plasma TG and cholesterol. Because plasma and liver lipid profiles range from mild to severe in populations of heterozygous apoB38.9 mice on a mixed (C57BL/6J;129X1/SvJ) genetic background, apoB+/38 .....
For more information please see the full descriiption on the strain data sheet
005323 B6;129P2 Pemttm1J-tnyw/J
Repository- Live
005956 B6;D1Lac-Scd1ab-2J/J
Repository- Live
The overall appearance of mice homozygous for either the Scd1ab-J allele or the Scd1ab-2J allele (Stock No. 002304 or 005956) includes slightly hunched posture, dry, scaly skin, thin fur sometimes detectable by 7 days of age, and small eyes with encrusted eyelids stuck shut. They have hypoplasia of the sebaceous glands and other hair follicle abnormalities that result in scarring alopecia. These mice have a paucity of adipose tissue, thin subcutis, and a distinctive odor. Hepatic cholesterol ester and triglyceride synthesis has been shown to be deficient in Scd1ab-J homozygotes and could not be restored through diet. Early studies of skin lipids in the original asebia mutant (Scd1ab) revealed a deficiency in wax esters, wax diesters, and sterols esterified with very long-chain fatty acids along with an in .....
For more information please see the full descriiption on the strain data sheet
007683 CByJ.129X1(Cg)-Apobtm1.1Zc/J
Repository- Live
Mice homozygous for this apoB38.9 allele (apoB38.9/38.9) are viable with impaired fertility, bearing a premature stop codon at residue 1767 of the targeted gene. As a result, homozygous plasma shows a truncated apoB38.9 as the sole apoB protein. Plasma from heterozygous (apoB+/38.9) mice have reduced apoB100 and apoB48 compared to wild-type, with apoB38.9 representing 20% of total circulating apoB. This apoB38.9 truncation affects both apoB100 and apoB48 metabolism in mice, and mimics human Familial Hypobetalipoproteinemia (FHBL). Homozygous and, to a lesser extent, heterozygous mice exhibit symptoms of FHBL due to impaired lipoprotein export system/VLDL secretion, including elevated hepatic triglyceride (TG), cholesterol and free fatty acids (FFA), with decreased plasma TG and cholesterol. These BALB/cByJ-apoB38.9 mice are also heterozygous for the BALB/cByJ-derived SCAD deletion (Acadsdel-J). While BALB/cByJ inbred mice have elevated liver TG f .....
For more information please see the full descriiption on the strain data sheet
007679 SWR.129X1(B6)-Apobtm1.1Zc/J
Repository- Live
Mice homozygous for this apoB38.9 allele (apoB38.9/38.9) are viable with impaired fertility, bearing a premature stop codon at residue 1767 of the targeted gene. As a result, homozygous plasma shows a truncated apoB38.9 as the sole apoB protein. Plasma from heterozygous (apoB+/38.9) mice have reduced apoB100 and apoB48 compared to wildtype, with apoB38.9 representing 20% of total circulating apoB. This apoB38.9 truncation affects both apoB100 and apoB48 metabolism in mice, and mimics human Familial Hypobetalipoproteinemia (FHBL). Homozygous and, to a lesser extent, heterozygous mice exhibit symptoms of FHBL due to impaired lipoprotein export system/VLDL secretion, including elevated hepatic triglyceride (TG), cholesterol and free fatty acids (FFA), with decreased plasma TG and cholesterol. Because plasma and liver lipid profiles range from mild to severe in populations of heterozygous apoB38.9 mice on a mixed (C57BL/6J;129X1/SvJ) genetic background, apoB+/38. .....
For more information please see the full descriiption on the strain data sheet
002057 B6.129-Apoc3tm1Unc/J
Repository-Cryopreserved
Mice homozygous for the Apoc3tm1Unc show fasted plasma triglyceride levels that are 70% that present in normal wildtype siblings. Levels of total plasma cholesterol and HDL in homozygous mice are slightly reduced compared to normal wildtype silbings. Homozygotes also show hypotriglyceridemia when given the "fat meal test", and are able to clear chylomicrons faster than normal wildtype silbings. Heterozygous mice show fasted plasma triglyceride levels that are reduced compared to normal wildtype mice, though not as severely as in homozygous mice.
005951 B6.129-Dgat2tm1Rvf/J
Repository-Cryopreserved
Mice that are homozygous for the targeted mutation have a perinatal lethal phenotype, most fail to survive past 6 hours after birth due to dehydration, skin barrier abnormalities, hypothermia and energy deficiencies. Reduced levels of gene product (mRNA) are detected by RT-PCR analysis of brown adipose tissue and livers of neonate homozygous mutants. Growth retardation is observed in homozygous embryos after embryonic day 12.5. Newborn homozygotes are hypoglycemic and lipopenic, exhibiting reduced plasma triglyceride, free fatty acid and glucose levels and have almost no white fat tissue. Within a few hours of birth, the skin of homozygotes becomes dry and cracked. Homozygous mutants rapidly lose weight due to dehydration caused by impaired permeability barrier function. Histological analysis of skin tissue from homozygotes reveals abnormally thin epidermis and compact orthohyperkeratosis of the stratum corneum. Homozygotes surviving between 8 and 24 hours develop tail necrosis. Hetero .....
For more information please see the full descriiption on the strain data sheet
003824 B6.129S4-Dgat1tm1Far/J
Repository-Cryopreserved
Mice homozygous for the Dgat1tm1Far targeted mutation are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities however, homozygous mutant females exhibit a complete absence of milk production, necessitating the use of foster mothers. Dgat1 mRNA is undetectable by Northern blot analysis, and DGAT enzyme activity in a variety of tissues is either absent or shows only residual levels. Surprisingly, in DGAT deficient mice triglyceride levels and fasting serum triglycerides levels are similar to wildtype controls. Although homozygotes do not differ in body weight compared to age- and sex-matched controls, total fat pad weight is reduced. Tissue triglyceride levels are reduced 30-40% in white adipose tissue and muscle. Liver triglyceride levels tend to be lower in chow-fed DGAT-deficient mice, but high-fat feeding leads to significantly lower liver triglycerides. Changes in tissue triglyceride levels are associated with in .....
For more information please see the full descriiption on the strain data sheet
002879 B6;129-Apobtm2Sgy Apoetm1Unc/J
Repository-Cryopreserved
Mice homozygous for the Apobtm2Sgy and Apoetm1Unc targeted mutations do not express the apolipoproteins B48 or E, they do express APOB100. Homozygotes are viable and fertile with no overt abnormalities. Compared to the APOB48 APOE deficient mice and the APOE deficient mice, they have the lowest total cholesterol (247mg/dl), lowest LDL cholesterol, and the least extensive Atherosclerotic lesions. The extent of atherosclerosis correlated significantly with plasma cholesterol levels.
003187 B6;129P2-Pemttm1J/J
Repository-Cryopreserved
Mice homozygous for the Pemttm1J are viable and fertile. Pemt encodes an enzyme that converts phosphatidylethanolamine to phosphatidylcholine. Homozygotes completely lack PEMT activity and are no longer able to catalyze this reaction. Homozygotes are indistinguishable from controls in terms of development, behavior, and fecundity. Hepatocyte morphology, plasma lipid levels, and bile composition are normal. However, feeding homozygotes a choline deficient (CD) diet causes rapid onset of a severe liver pathology. Mice lose weight, develop grossly enlarged and pale colored livers, develop bright yellow plasma, and their gall bladders become engorged. In addition, a 50% decrease in liver phosphatidylcholine concentration and greater than 90% decrease in plasma triacylglyceride and cholesterol levels is observed in homozygotes on the CD-deficient diet.
003000 B6;129S-Apobtm2Sgy Ldlrtm1Her/J
Repository-Cryopreserved
This strain expresses only APO-B100 (normally expressed in the liver and yolk sac) and is deficient in low density lipoprotein receptor (Ldlrtm1Her/Ldlrtm1Her).
002227 B6;129S-Apoc3tm1Unc/J
Repository-Cryopreserved
Mice homozygous for the Apoc3tm1Unc show fasted plasma triglyceride levels that are 70% that present in normal wildtype siblings. Levels of total plasma cholesterol and HDL in homozygous mice are slightly reduced compared to normal wildtype silbings. Homozygotes also show hypotriglyceridemia when given the "fat meal test", and are able to clear chylomicrons faster than normal wildtype silbings. Heterozygous mice show fasted plasma triglyceride levels that are reduced compared to normal wildtype mice, though not as severely as in homozygous mice.
002877 B6;129S7-Apobtm2Sgy/J
Repository-Cryopreserved
Mice homozygous for the Apobtm2Sgy targeted mutation express only the APOB100 protein; development is normal and there are no intestinal abnormalities. LDL cholesterol is normal. These homozygoous mice have the lowest HDL cholesterol compared to wildtype and APOB48 expressing mice (B6,129-Apobtm1Sgy/J, Stock No. 002876).
003285 C57BL/6-Tg(LIPC)6784His/J
Repository-Cryopreserved
These transgenic mice overproduce a range of human hepatic lipase activities (4-23 fold increase) and help to understand the role of hepatic lipase in lipoprotein metabolism. A 5-fold increase in heparin releasable hepatic lipase activity is accompanied by moderate decreases in plasma total and high density lipoprotein (HDL) cholesterol and phospholipid (PL) but no significant change in triglyceride (TG), whereas a 23-fold increase in hepatic lipase activity causes a more significant decrease in plasma total and HDL cholesterol, PL and TG, and a substantial decrease in lipoprotein lipids amongst IDL, LDL and HDL fractions. High levels of hepatic lipase activity diminish the plasma concentration of apoA-I, A-II and apoE. Increased hepatic lipase activity is associated with a progressive decrease in the levels and an increase in the density of LpAI and LpB48 particles. There is an increased rate of disappearance of 125I-labeled human HDL from the plasma of the transgenic mice and substan .....
For more information please see the full descriiption on the strain data sheet
002304 DBA/1LacJ-Scd1ab-2J/J
Repository-Cryopreserved
The overall appearance of mice homozygous for either the Scd1ab-J allele or the Scd1ab-2J allele (Stock No. 002304 or 005956) includes slightly hunched posture, dry, scaly skin, thin fur sometimes detectable by 7 days of age, and small eyes with encrusted eyelids stuck shut. They have hypoplasia of the sebaceous glands and other hair follicle abnormalities that result in scarring alopecia. These mice have a paucity of adipose tissue, thin subcutis, and a distinctive odor. Hepatic cholesterol ester and triglyceride synthesis has been shown to be deficient in Scd1ab-J homozygotes and could not be restored through diet. Early studies of skin lipids in the original asebia mutant (Scd1ab) revealed a deficiency in wax esters, wax diesters, and sterols esterified with very long-chain fatty acids along with an i .....
For more information please see the full descriiption on the strain data sheet
004192 STOCK Mttptm2Sgy Ldlrtm1Her Apobtm2Sgy Tg(Mx1-cre)1Cgn/J
Repository-Cryopreserved
These mice are homozygous for four different induced mutations. The cumulative result of these mutations is a mouse model in which hypercholesterolemia can be reversed. By themselves, the combined presence of the Ldlrtm1Sgy and Apobtm1Sgy targeted alleles results in mice with a high susceptibility to atherosclerosis and total plasma cholesterol levels of approximately 300 mg/dl. A functional microsomal triglyceride transfer protein gene (Mttp) is essential for establishing a hypercholesterolemic condition. By flanking the Mttp gene with loxP sites and including a Mx1-Cre transgene, it is possible to reduce total plasma cholesterol levels from 300 mg/dl to 30 mg/dl upon induction of the Cre recombinase by administering interferon alpha, interferon beta, or synthetic double-stranded RNA. This unique model is useful in research related to the mechanisms and events of atherosclerotic reversal. Mice homozygous for the targeted .....
For more information please see the full descriiption on the strain data sheet

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New Strains Under Development

(See informational text following listing of strains)
How to Register Interest
Please indicate your interest in purchasing any of the strains listed below when they become available for distribution by checking the box next to the strain(s) of interest and then selecting the "Continue" button which leads to an Interest Form.

View a Data sheet for New Strains Under Development
Select the strain name to link to the strain data sheet.

Stock
Number
Strain Name
 
Strain Description
Standard Supply
007082CByJ.129S(B6)-Tnftm1Gkl/J
Under Development for Production
Mice homozygous for the Tnftm1Gkl targeted mutation are viable and fertile. Development of both lymph nodes and Peyer's patches is normal, and homozygous mutant mice show no apparent phenotypic abnormalities. Homozygous mice completely lack splenic primary B cell follicles and cannot form organized follicular dendritic cell networks and germinal centers. TNF-deficient mice treated to induce skin carcinogenesis develop significantly less benign and malignant tumors than treated wildtype mice. Nonobese homozygous mutant mice show modest decreases in body weight, epididymal fat depot weight, and percent body fat (statistically significant in males at 28 weeks of age). Further characterization indicates that 28 week old male mutant mice display lower insulin, triglyceride, and leptin levels compared to wildtype controls. Characterization of TNF deficient homozygotes injected with gold-thioglucose (GTG) to induce hyperphagic obesity indicates that the presence of TNF does .....
For more information please see the full description on the strain data sheet

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New Strains Under Development The Jackson Laboratory serves as a worldwide distributor and national repository for common and rare strains of inbred mice and mice carrying spontaneous mutations or induced mutations (i.e., transgenic, targeted/"knockout", or chemically induced mutations). At any one time, we have over 100 strains at various stages of development and colony expansion. Strains "Under Development" fall into two categories depending on the anticipated demand from the scientific community.
  1. Strains that will be made available from a live distribution colony at The Jackson Laboratory.
    These strains are designated as: "Under Development for Distribution Colony"
  2. Strains that will be made available through the Cryopreservation Repository.
    These strains are designated as: "Under Development for Cryopreservation Repository"
It is VERY IMPORTANT that you register interest in strains Under Development. The anticipated demand for a strain enables us to determine effectively the distribution plan for each strain Under Development. Registering interest also provides benefits to you (including advance notification of pending availability). Whether a strain is made available from a live colony OR from our cryopreservation repository, you may want to consider the option of Dedicated Supply. To learn more about Dedicated Supply, go to Services.

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