Document Information


PMID 17977949  (  )
Title Attenuation of interstitial fibrosis and tubular apoptosis in db/db transgenic mice overexpressing catalase in renal proximal tubular cells.
Abstract OBJECTIVE: The present study investigated the relationships between reactive oxygen species (ROS), interstitial fibrosis, and renal proximal tubular cell (RPTC) apoptosis in type 2 diabetic db/db mice and in db/db transgenic (Tg) mice overexpressing rat catalase (rCAT) in their RPTCs (db/db rCAT-Tg). RESEARCH DESIGN AND METHODS: Blood pressure, blood glucose, and albuminuria were monitored for up to 5 months. Kidneys were processed for histology and apoptosis studies (terminal transferase-mediated dUTP nick-end labeling or immunostaining for active caspase-3 and Bax). Real-time quantitative PCR assays were used to quantify angiotensinogen (ANG), p53, and Bax mRNA levels. RESULTS: db/db mice developed obesity, hyperglycemia, hypertension, and albuminuria. In contrast, db/db rCAT-Tg mice became obese and hyperglycemic but had normal blood pressure and attenuated albuminuria compared with db/db mice. Kidneys from db/db mice displayed progressive glomerular hypertrophy, glomerulosclerosis, interstitial fibrosis, and tubular apoptosis and increased expression of collagen type IV, Bax, and active caspase-3, as well as increased ROS production. These changes, except glomerular hypertrophy, were markedly attenuated in kidneys of db/db rCAT-Tg mice. Furthermore, ANG, p53, and Bax mRNA expression was increased in renal proximal tubules of db/db mice but not of db/db rCAT-Tg mice. CONCLUSIONS: Our results indicate a crucial role for intra-renal ROS in the progression of hypertension, albuminuria, interstitial fibrosis, and tubular apoptosis in type 2 diabetes and demonstrate the beneficial effects of suppressing ROS formation. (CHUM) Hotel-Dieu, Research Centre, Pavillon Masson, 3850 Saint Urbain St., Montreal, Quebec, Canada.

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Targets by SciMiner Summary

HUGO ID Symbol Target Name #Occur ActualStr
333AGTangiotensinogen (serpin peptidase inhibitor, clade A, member 8)27angiotensinogen | ang ii | Ang | ANG |
1516CATcatalase17CAT | catalase |
1504CASP3caspase 3, apoptosis-related cysteine peptidase15caspase 3 |
11998TP53tumor protein p5312p53 |
2197COL1A1collagen, type I, alpha 19collagen |
6554LEPRleptin receptor8leptin receptor |
399ALBalbumin6albumin |
11766TGFB1transforming growth factor, beta 14TGF-B | TGF-B1 |
14874NOX5NADPH oxidase, EF-hand calcium binding domain 53nadph oxidase |
11076SLC9A3R2solute carrier family 9 (sodium/hydrogen exchanger), member 3 regulator 22sodium/hydrogen exchanger |
2983DNTTdeoxynucleotidyltransferase, terminal2terminal transferase |
6081INSinsulin2insulin |
2202COL4A1collagen, type IV, alpha 12collagen iv |
7660NCF1neutrophil cytosolic factor 1, (chronic granulomatous disease, autosomal 1)2p47 |
2578CYBBcytochrome b-245, beta polypeptide (chronic granulomatous disease)1Nox2 |
9958RENrenin1renin |
11765TGFAtransforming growth factor, alpha1transforming growth factor |
7891NOX4NADPH oxidase 41Nox4 |

 


Targets by SciMiner Full list

HUGO ID Symbol Name ActualStr Score FlankingText
333AGTangiotensinogen (serpin peptidase inhibitor, clade A, member 8)ANG2.8Real-time quantitative PCR assays were used to quantify angiotensinogen (ANG), ANG p53 and Bax mRNA levels
11998TP53tumor protein p53p533.6quantitative PCR assays were used to quantify angiotensinogen (ANG), ANG p53 and Bax mRNA levels
2197COL1A1collagen, type I, alpha 1collagen1.2glomerulosclerosis interstitial fibrosis and tubular apoptosis and increased expression of collagen type IV Bax and active caspase-3 as well as increased
333AGTangiotensinogen (serpin peptidase inhibitor, clade A, member 8)ANG2.8Furthermore ANG p53 and Bax mRNA expression was increased in renal proximal
11998TP53tumor protein p53p533.6Furthermore ANG p53 and Bax mRNA expression was increased in renal proximal tubules
333AGTangiotensinogen (serpin peptidase inhibitor, clade A, member 8)Ang2.8Ang II stimulates ROS generation via heightened NADPH oxidase activity in
333AGTangiotensinogen (serpin peptidase inhibitor, clade A, member 8)ANG2.8that high glucose evokes ROS generation and enhances angiotensinogen (ANG) ANG (the the sole substrate of RAS gene expression in rat
1516CATcatalaseCAT2.3The present study investigated whether catalase (CAT) CAT overexpression in RPTCs attenuates the high-glucose action on interstitial fibrosis
333AGTangiotensinogen (serpin peptidase inhibitor, clade A, member 8)ANG2.8attenuates the high-glucose action on interstitial fibrosis and tubular apoptosis ANG and proapoptotic gene (p53, p53 Bax and caspase-3 expression in
11998TP53tumor protein p53p533.6interstitial fibrosis and tubular apoptosis ANG and proapoptotic gene (p53, p53 Bax and caspase-3 expression in type 2 diabetic db/db db
1516CATcatalaseCAT2.3Rabbit polyclonal antibodies against bovine CAT and monoclonal antibodies against B-actin were purchased from Sigma-Aldrich Canada
1516CATcatalaseCAT2.3The relative densities of CAT and B-actin bands were quantified by computerized laser densitometry (ImageQuant
333AGTangiotensinogen (serpin peptidase inhibitor, clade A, member 8)Ang2.8used in real-time quantitative PCR to quantify the amount of Ang p53 and Bax mRNA expressed in mRPTs as described previously
11998TP53tumor protein p53p533.6in real-time quantitative PCR to quantify the amount of Ang p53 and Bax mRNA expressed in mRPTs as described previously (
333AGTangiotensinogen (serpin peptidase inhibitor, clade A, member 8)ANG2.8The forward and reverse primers corresponding to ANG (NM_007428 NM_007428 forward 5'-ACAGACACCGAGATGCTGTT-3' and reverse 5'-CCACGCTCTCTGGATTTATC-3' p53 (AB020317 AB020317
11998TP53tumor protein p53p533.6corresponding to ANG (NM_007428 NM_007428 forward 5'-ACAGACACCGAGATGCTGTT-3' and reverse 5'-CCACGCTCTCTGGATTTATC-3' p53 (AB020317 AB020317 forward 5' TGATGGAGA GTATTTCACCC-3' and reverse 5'-GGGCATCCTTTAACTCTAAG-3' Bax
1516CATcatalaseCAT2.3To investigate whether CAT can attenuate kidney injury in type 2 diabetic db/db db
1516CATcatalaseCAT2.3The CAT transgene and the mutated insulin-2 gene were expressed in kidneys
1516CATcatalaseCAT2.3CAT protein expression (assessed assessed by Western blotting was at least
1516CATcatalaseCAT2.3Likewise immunostaining for CAT and ROS generation were higher in RPTCs of db/db db
1516CATcatalaseCAT2.3db db mice indicating that attenuation of ROS generation by CAT can prevent development of hypertension in db/db db db mice
333AGTangiotensinogen (serpin peptidase inhibitor, clade A, member 8)ANG2.8Indeed we have previously reported that Tg mice overexpressing ANG in their RPTCs do develop hypertension ( 32
333AGTangiotensinogen (serpin peptidase inhibitor, clade A, member 8)ANG2.8Furthermore our present data show that ANG mRNA expression is threefold higher in RPTs from db/db db
2197COL1A1collagen, type I, alpha 1collagen1.2Furthermore ECM protein and collagen expression were attenuated in the kidneys of db/db db db
2197COL1A1collagen, type I, alpha 1collagen1.2By using immunostaining we also detected enhanced collagen type IV expression in glomeruli and tubulointerstitial spaces in db/db
2197COL1A1collagen, type I, alpha 1collagen1.2Surprisingly collagen type IV expression was completely normalized in db/db db db
1516CATcatalaseCAT2.3db/db db db mice actually induces tubular apoptosis and that CAT overexpression can at least partially prevent it
11998TP53tumor protein p53p533.6db mice exhibited markedly elevated expression of the proapoptotic genes p53 and Bax
11998TP53tumor protein p53p533.6Our observations that Bax and p53 mRNA expression was considerably lower in db/db db db rCAT-Tg
333AGTangiotensinogen (serpin peptidase inhibitor, clade A, member 8)ANG2.8One possibility is that ROS stimulate ANG production and activate the intrarenal RAS as RPTCs express all
333AGTangiotensinogen (serpin peptidase inhibitor, clade A, member 8)Ang2.8Ang II promotes sodium reabsorption via stimulation of sodium/hydrogen sodium hydrogen
333AGTangiotensinogen (serpin peptidase inhibitor, clade A, member 8)Ang2.8Furthermore Ang II is capable of stimulating transforming growth factor-B 1 (TGF-B1)
11766TGFB1transforming growth factor, beta 1TGF-B11.7II is capable of stimulating transforming growth factor-B 1 (TGF-B1) TGF-B1 and subsequently enhancing ECM protein collagen type IV and proapoptotic
2197COL1A1collagen, type I, alpha 1collagen1.2growth factor-B 1 (TGF-B1) TGF-B1 and subsequently enhancing ECM protein collagen type IV and proapoptotic genes in RPTCs leading to tubular
11766TGFB1transforming growth factor, beta 1TGF-B1.2Indeed neutralization of TGF-B alleviated fibrosis in diabetic animal models including db/db db db
11766TGFB1transforming growth factor, beta 1TGF-B11.7Moreover TGF-B1 was reported to promote apoptosis after renal injury in both
333AGTangiotensinogen (serpin peptidase inhibitor, clade A, member 8)ANG2.8We have previously found that intrarenal ANG gene expression is essential for TGF-B1 gene expression in rat
11766TGFB1transforming growth factor, beta 1TGF-B11.7previously found that intrarenal ANG gene expression is essential for TGF-B1 gene expression in rat RPTCs exposed to high glucose in
333AGTangiotensinogen (serpin peptidase inhibitor, clade A, member 8)ANG2.8glucose in vitro ( 47 and that Tg mice overexpressing ANG in RPTCs exhibit hypertension and albuminuria ( 32
333AGTangiotensinogen (serpin peptidase inhibitor, clade A, member 8)ANG2.8Our present data showed at least threefold higher ANG mRNA expression in RPTs of db/db db db mice and
333AGTangiotensinogen (serpin peptidase inhibitor, clade A, member 8)ANG2.8in RPTs of db/db db db mice and normalization of ANG mRNA expression in db/db db db rCAT-Tg mice
2578CYBBcytochrome b-245, beta polypeptide (chronic granulomatous disease)Nox21.0diabetes is associated with enhanced expression of NADPH oxidase subunits Nox2 Nox4 and p47 mRNA and p47 in mouse glomeruli (
7891NOX4NADPH oxidase 4Nox40.9is associated with enhanced expression of NADPH oxidase subunits Nox2 Nox4 and p47 mRNA and p47 in mouse glomeruli ( 49
7660NCF1neutrophil cytosolic factor 1, (chronic granulomatous disease, autosomal 1)p470.8with enhanced expression of NADPH oxidase subunits Nox2 Nox4 and p47 mRNA and p47 in mouse glomeruli ( 49 indicating that
7660NCF1neutrophil cytosolic factor 1, (chronic granulomatous disease, autosomal 1)p470.8of NADPH oxidase subunits Nox2 Nox4 and p47 mRNA and p47 in mouse glomeruli ( 49 indicating that these NADPH oxidase
1516CATcatalaseCAT2.3In summary the present study suggest a critical role for CAT in attenuating hypertension albuminuria interstitial fibrosis and RPTC apoptosis in
1516CATcatalaseCAT2.3C Immunohistochemical staining of CAT in male non-Tg and Tg mouse kidneys using rabbit anti-CAT
2197COL1A1collagen, type I, alpha 1collagen1.2Masson's trichrome staining ( A -D and immunostaining for collagen IV ( E -H in male non-Tg and Tg mouse
2197COL1A1collagen, type I, alpha 1collagen1.2ECM components accumulation (Masson's Masson's trichrome staining ( a and collagen IV deposition ( b
333AGTangiotensinogen (serpin peptidase inhibitor, clade A, member 8)Ang2.8Expression of Ang Bax and p53 mRNA in RPTs of non-Tg and Tg
11998TP53tumor protein p53p533.6Expression of Ang Bax and p53 mRNA in RPTs of non-Tg and Tg mice quantified by
333AGTangiotensinogen (serpin peptidase inhibitor, clade A, member 8)ANG2.8from non-Tg and Tg mice were isolated and assayed for ANG ( A Bax ( B and p53 ( C mRNA
11998TP53tumor protein p53p533.6and assayed for ANG ( A Bax ( B and p53 ( C mRNA
333AGTangiotensinogen (serpin peptidase inhibitor, clade A, member 8)ANG2.8The relative densities of ANG Bax and p53 mRNA were normalized with B-actin mRNA control
11998TP53tumor protein p53p533.6The relative densities of ANG Bax and p53 mRNA were normalized with B-actin mRNA control
333AGTangiotensinogen (serpin peptidase inhibitor, clade A, member 8)ANG2.8ANG Bax and p53 mRNA levels in db/m db m mice
11998TP53tumor protein p53p533.6ANG Bax and p53 mRNA levels in db/m db m mice were considered as
1516CATcatalaseCAT2.3CAT protein expression in the RPTs of db/db db db rCAT-Tg
1516CATcatalaseCAT2.3and db/db db db rCAT-Tg was documented by immunostaining of CAT in mouse kidneys ( Fig 1 C
2197COL1A1collagen, type I, alpha 1collagen1.2expression of collagenous components ( Fig 5 A and immunoreactive collagen type IV ( Fig 5 B in db/db db db
2197COL1A1collagen, type I, alpha 1collagen1.2Once again staining for collagenous components and immunostaining for collagen type IV were normalized in db/db db db rCAT-Tg mouse
1516CATcatalaseCAT2.3Next we investigated whether CAT overexpression could prevent apoptosis induced by hyperglycemia in mouse RPTCs
333AGTangiotensinogen (serpin peptidase inhibitor, clade A, member 8)ANG2.8ANG and proapoptotic gene mRNA expression in mouse RPTs
333AGTangiotensinogen (serpin peptidase inhibitor, clade A, member 8)ANG2.8Expression of ANG mRNA ( Fig 8 A Bax mRNA ( Fig 8
11998TP53tumor protein p53p533.6Fig 8 A Bax mRNA ( Fig 8 B and p53 mRNA ( Fig 8 C was significantly elevated in RPTs
1516CATcatalasecatalase1.0relationships between reactive oxygen species ros interstitial fibrosis and renal proximal tubular cell rptc apoptosis in type 2 diabetic db/db mice and in db/db transgenic tg mice overexpressing rat catalase rcat in their rptcs db/db rcat tg .
1504CASP3caspase 3, apoptosis-related cysteine peptidasecaspase 31.0kidneys were processed for histology and apoptosis studies terminal transferase mediated dutp nick end labeling or immunostaining for active caspase 3 and bax .
2983DNTTdeoxynucleotidyltransferase, terminalterminal transferase1.0kidneys were processed for histology and apoptosis studies terminal transferase mediated dutp nick end labeling or immunostaining for active caspase 3 and bax .
333AGTangiotensinogen (serpin peptidase inhibitor, clade A, member 8)angiotensinogen1.0real time quantitative pcr assays were used to quantify angiotensinogen ang p53 and bax mrna levels.
1504CASP3caspase 3, apoptosis-related cysteine peptidasecaspase 31.0kidneys from db/db mice displayed progressive glomerular hypertrophy glomerulosclerosis interstitial fibrosis and tubular apoptosis and increased expression of collagen type iv bax and active caspase 3 as well as increased ros production.
6081INSinsulininsulin1.0multiple factors have been implicated in the pathogenesis of diabetic nephropathy including hyperglycemia hypertension insulin resistance and oxidative stress 4 .
333AGTangiotensinogen (serpin peptidase inhibitor, clade A, member 8)ang ii1.0ang ii stimulates ros generation via heightened nadph oxidase activity in various renal cell types whereas antioxidants provide renal protection in part by ameliorating oxidative stress 8 11 .
14874NOX5NADPH oxidase, EF-hand calcium binding domain 5nadph oxidase1.0ang ii stimulates ros generation via heightened nadph oxidase activity in various renal cell types whereas antioxidants provide renal protection in part by ameliorating oxidative stress 8 11 .
9958RENreninrenin1.0such data strongly indicate a link between ros renin angiotensin system ras activation and renal cell apoptosis in diabetes.
333AGTangiotensinogen (serpin peptidase inhibitor, clade A, member 8)angiotensinogen1.0we have reported previously that high glucose evokes ros generation and enhances angiotensinogen ang the sole substrate of ras gene expression in rat rptcs 29 .
1504CASP3caspase 3, apoptosis-related cysteine peptidasecaspase 31.0the present study investigated whether catalase cat overexpression in rptcs attenuates the high glucose action on interstitial fibrosis and tubular apoptosis ang and proapoptotic gene p53 bax and caspase 3 expression in type 2 diabetic db/db mice in vivo.
1516CATcatalasecatalase1.0the present study investigated whether catalase cat overexpression in rptcs attenuates the high glucose action on interstitial fibrosis and tubular apoptosis ang and proapoptotic gene p53 bax and caspase 3 expression in type 2 diabetic db/db mice
1516CATcatalasecatalase1.0for this purpose we created db/db transgenic tg mice overexpressing rat catalase rcat in rptcs db/db rcat tg by cross breeding heterozygous db/m mice with our established homozygous tg mice overexpressing rcat in rptcs 24 .
1504CASP3caspase 3, apoptosis-related cysteine peptidasecaspase 31.0anti cleaved caspase 3 polyclonal antibody anti bax polyclonal antibody and monoclonal anti collagen type iv antibody were obtained from new england biolabs pickering on canada santa cruz biotechnologies santa cruz ca and
6554LEPRleptin receptorleptin receptor1.0homozygous db/db rcat tg mice were identified by the pcr of genomic dna for the rcat transgene 24 and the mutated leptin receptor gene 31 .
6554LEPRleptin receptorleptin receptor1.0gccgcatggcggacagccgggaccc 3' and the ha a tag sequence encoding amino acid residues 98 106 [ypydvpdya] of human influenza virus hemagglutinin anti sense primer 5' ggcgtagtcaggcacgtcgt 3' 32 the mouse leptin receptor gene forward primer 5' agaacggacactctttgaagtctc 3' and the reverse primer 5' cattcaaaccatagtttaggtttgtgt 3' of the mouse leptin receptor gene 31 respectively were used for pcr.
6554LEPRleptin receptorleptin receptor1.0 gene forward primer 5' agaacggacactctttgaagtctc 3' and the reverse primer 5' cattcaaaccatagtttaggtttgtgt 3' of the mouse leptin receptor gene 31 respectively were used for pcr.
6554LEPRleptin receptorleptin receptor1.0the dna fragment 135 bp of mouse leptin receptor gene was then digested with the restriction enzyme rsa i for 1 h at 37degreec.
2983DNTTdeoxynucleotidyltransferase, terminalterminal transferase1.0terminal transferase mediated dutp nick end labeling assay and immunohistochemical staining.
1504CASP3caspase 3, apoptosis-related cysteine peptidasecaspase 31.0tion was performed by the standard avidin biotin peroxidase complex method abc staining system; santa cruz biotechnologies 24 32 using primary anti cat polyclonal antibody 1:500 dilution anti cleaved caspase 3 polyclonal antibody 1:50 dilution anti collagen type iv monoclonal antibody 1:50 dilution or anti bax polyclonal antibody 1:50 dilution .
1504CASP3caspase 3, apoptosis-related cysteine peptidasecaspase 31.0the percentage of rptcs that stained positive on tunel assay and active caspase 3 and bax immunostaining was estimated quantitatively as previously described 24 .
1504CASP3caspase 3, apoptosis-related cysteine peptidasecaspase 31.0the number of rptcs containing tunel positive active caspase 3 or bax staining was divided by the total number of rptcs counted and multiplied by 100 to calculate the percentage of positively stained rptcs.
6554LEPRleptin receptorleptin receptor1.0figure 1 a presents data from the specific pcr analysis of the rcat ha transgene and mutated leptin receptor gene in offspring of the rcat tg line 688 crossbred with heterozygous db/m mice.
6554LEPRleptin receptorleptin receptor1.0animals displaying rcat ha transgene and the mutated leptin receptor gene were used in subsequent experiments.
6081INSinsulininsulin1.0the cat transgene and the mutated insulin 2 gene were expressed in kidneys of homozygous db/db cat tg mice.
399ALBalbuminalbumin1.0since microalbuminuria is an important clinical marker for the early detection of hypertension or diabetes induced nephropathy we monitored urinary albuminuria using the albumin to creatinine ratio.
399ALBalbuminalbumin1.0overexpression of rcat in female db/db mice was however more effective in lowering the albumin to creatinine ratio than in male db/db mice.
1504CASP3caspase 3, apoptosis-related cysteine peptidasecaspase 31.0indeed active caspase 3 and bax expression was normalized in db/db rcat tg mice.
11076SLC9A3R2solute carrier family 9 (sodium/hydrogen exchanger), member 3 regulator 2sodium/hydrogen exchanger1.0ang ii promotes sodium reabsorption via stimulation of sodium/hydrogen exchanger activity in rptcs 42 ultimately leading to development of hypertension.
11076SLC9A3R2solute carrier family 9 (sodium/hydrogen exchanger), member 3 regulator 2sodium/hydrogen exchanger1.0ang ii promotes sodium reabsorption via stimulation of sodium/hydrogen exchanger activity in rptcs 42 ultimately leading to development of hypertension.
333AGTangiotensinogen (serpin peptidase inhibitor, clade A, member 8)ang ii1.0ang ii promotes sodium reabsorption via stimulation of sodium/hydrogen exchanger activity in rptcs 42 ultimately leading to development of hypertension.
333AGTangiotensinogen (serpin peptidase inhibitor, clade A, member 8)ang ii1.0furthermore ang ii is capable of stimulating transforming growth factor b 1 tgf b1 and subsequently enhancing ecm protein collagen type iv and proapoptotic genes in rptcs leading to tubular injury interstitial fibrosis
11765TGFAtransforming growth factor, alphatransforming growth factor1.0furthermore ang ii is capable of stimulating transforming growth factor b 1 tgf b1 and subsequently enhancing ecm protein collagen type iv and proapoptotic genes in rptcs leading to tubular injury interstitial fibrosis and cellular apoptosis 43 .
14874NOX5NADPH oxidase, EF-hand calcium binding domain 5nadph oxidase1.0among these sources mitochondrial 29 and membrane bound nadph oxidase derived 48 ros production have already been reported.
14874NOX5NADPH oxidase, EF-hand calcium binding domain 5nadph oxidase1.0interestingly diabetes is associated with enhanced expression of nadph oxidase subunits nox2 nox4 and p47 mrna and p47 in mouse glomeruli 49 indicating that these nadph oxidase subunits might be involved in ros production in rpts.
6554LEPRleptin receptorleptin receptor1.0specific pcr analysis of rcat ha transgene and mutated leptin receptor gene in offspring of rcat tg line 688 cross bred with heterozygous db/m mice.
6554LEPRleptin receptorleptin receptor1.0animals displaying rcat ha transgene and mutated leptin receptor gene were used in subsequent experiments.
399ALBalbuminalbumin1.0changes in mean blood pressure a and mean albumin microg to creatinine mg ratios b in male and female non tg and tg mice from 8 to 20 weeks. db/m mice; db/m rcat tg mice; _amp_#149; db/db mice; db/db rcat tg mice.
2202COL4A1collagen, type IV, alpha 1collagen iv1.0masson's trichrome staining a d and immunostaining for collagen iv e h in male non tg and tg mouse kidneys at week 20.
2202COL4A1collagen, type IV, alpha 1collagen iv1.0i : quantification of ecm components accumulation masson's trichrome staining a and collagen iv deposition b .
1504CASP3caspase 3, apoptosis-related cysteine peptidasecaspase 31.0immunohistochemical staining of alpha active caspase 3 and bax in male non tg and tg mouse kidneys at week 20 using rabbit anti alpha active caspase 3 and anti bax polyclonal antibodies respectively.
1504CASP3caspase 3, apoptosis-related cysteine peptidasecaspase 31.0a : alpha active caspase 3 immunostaining a d .
1504CASP3caspase 3, apoptosis-related cysteine peptidasecaspase 31.0c : quantitative analysis of active caspase 3 and bax positive rptcs from male non tg and tg mouse kidneys at week 20.
1504CASP3caspase 3, apoptosis-related cysteine peptidasecaspase 31.0immunostained active caspase 3 a and bax b .
399ALBalbuminalbumin1.0slight increases in the 24 h urinary albumin to creatinine ratio were detectable in both male and female db/db and db/db rcat tg mice after week 16 compared with db/m and db/m rcat tg mice respectively fig 3 b .
399ALBalbuminalbumin1.0however the albumin to creatinine ratio at week 16 did not differ significantly in both male and female db/db and db/db rcat tg.
399ALBalbuminalbumin1.0in sharp contrast the 24 h urinary albumin to creatinine ratio was significantly decreased p 0.05 at 18 weeks in both male and female db/db rcat tg mice compared with db/db mice.
1504CASP3caspase 3, apoptosis-related cysteine peptidasecaspase 31.0markedly elevated active caspase 3 expression was detected in rptcs from db/db mice fig 7 a c but not in db/m db/m rcat tg or db/db rcat tg mice fig 7 a a b and d .
1504CASP3caspase 3, apoptosis-related cysteine peptidasecaspase 31.0these observations were confirmed by quantitation of the immunostaining of active caspase 3 and bax fig 7 c .
1504CASP3caspase 3, apoptosis-related cysteine peptidasecaspase 31.0importantly active caspase 3 and bax immunostaining were significantly attenuated in db/db rcat tg mice.