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Articles by H. H Lee
Total Records ( 3 ) for H. H Lee
  J. J Chen , L. Y Lin , H. H Lee , L. P Lai , J. L Lin , J. J Huang and C. D. Tseng

Peripheral arterial disease (PAD) is an inflammatory process. The association between white blood cell (WBC) count and PAD in those with and without traditional risk factors is not clear. We examined data from the National Health and Nutrition Examination Survey (NHANES) 1999 to 2004. A total of 5260 participants were included. The result showed that the prevalence of PAD rose from 2.8% ± 0.5% in the lowest quartile of plasma WBC count to 8.0% ± 1.2% in the highest quartile. In subgroup analysis, the graded association between WBC count and PAD was significant in patients without hypertension, diabetes, smoking, chronic kidney disease (CKD), and in patients with or without hypercholesterolemia but not significant in patients with hypertension, smoking, diabetes, or CKD. In those without hypertension, diabetes, smoking, or CKD, the cutoff value for WBC count was 6.75 x 109/L. We concluded that the positive association between WBC count and PAD can be demonstrated in this national survey.

  R. J Guo , S Funakoshi , H. H Lee , J Kong and J. P. Lynch

Cdx2 is an intestine-specific transcription factor known to regulate proliferation and differentiation. We have reported previously that Cdx2 limits the proliferation of human colon cancer cells by inhibiting the transcriptional activity of the β-catenin–T-cell factor (TCF) bipartite complex. Herein we further elucidate this mechanism. Studies with a classic Cdx2 target gene and a canonical Wnt/β-catenin/TCF reporter suggest that Cdx2 regulates these promoters by distinctly different processes. Specifically, inhibition of β-catenin/TCF activity by Cdx2 does not require Cdx2 transcriptional activity. Instead, Cdx2 binds β-catenin and disrupts its interaction with the DNA-binding TCF factors, thereby silencing β-catenin/TCF target gene expression. Using Cdx2 mutants, we map the Cdx2 domains required for the inhibition of β-catenin/TCF activity. We identify a subdomain in the N-terminus that is highly conserved and when mutated significantly reduces Cdx2 inhibition of β-catenin/TCF transcriptional activity. Mutation of this subdomain also abrogates Cdx2’s anti-proliferative effects in colon cancer cells. In summary, we conclude that Cdx2 binds β-catenin and disrupts the β-catenin–TCF complex. Considering the pivotal role of β-catenin/TCF activity in driving proliferation of normal intestinal epithelial and colon cancer cells, our findings suggest a novel mechanism for Cdx2-mediated regulation of Wnt/β-catenin signaling and cell proliferation.

  P. W Weng , H. C Shen , H. H Lee , S. S Wu and C. H. Lee

Severe glenoid bone loss in recurrent anterior glenohumeral instability is rare and difficult to treat.


The authors present a surgical technique using allogeneic bone grafting for open anatomic glenoid reconstruction in addition to the capsular shift procedure.

Study Design

Case series; Level of evidence, 4.


Nine consecutive patients with a history of recurrent anterior shoulder instability underwent reconstruction of large bony glenoid erosion with a femoral head allograft combined with an anteroinferior capsular shift procedure. Preoperative computed tomographic and arthroscopic evaluation was performed to confirm a ≥120° osseous defect of the anteroinferior quadrant of the glenoid cavity, which had an "inverted-pear" appearance. Patients were followed for at least 4.5 years (range, 4.5–14). Serial postoperative radiographs were evaluated. Functional outcomes were assessed using Rowe scores.


All grafts showed bony union within 6 months after surgery. The mean Rowe score improved to 84 from a preoperative score of 24. The mean loss of external rotation was 7° compared with the normal shoulder. One subluxation and 1 dislocation occurred after grand mal seizures during follow-up. These 2 patients regained shoulder stability after closed reduction. The remaining patients did not report recurrent instability. All patients resumed daily activities without restricted motion.


This technique for open reconstruction is viable for the treatment of recurrent anterior glenohumeral instability with large bony glenoid erosion.

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