Long-term effects of calcium antagonists and angiotensin-converting enzyme inhibitors in patients with chronic renal failure of IgA nephropathy

Long-term effects of Ca antagonist and ACE inhibitor on renal function in hypertensive patients with chronic renal failure of IgA nephropathy were studied. Both Ca antagonists and ACE inhibitors were equally effective in reducing blood pressure.

Overexpression of the Arabidopsis thaliana EDS5 gene enhances resistance to viruses

The Arabidopsis thaliana ENHANCED DISEASE SUSCEPTIBILITY 5 gene (EDS5) is required for salicylic acid (SA) synthesis in pathogen-challenged plants. SA and EDS5 have an important role in the Arabidopsis RCY1 gene-conferred resistance against the yellow strain of Cucumber mosaic virus [CMV(Y)], a Bromoviridae, and HRT-conferred resistance against the Tombusviridae, Turnip crinkle virus (TCV). EDS5 expression and SA accumulation are induced in response to CMV(Y) inoculation in the RCY1-bearing ecotype C24. To further discern the involvement of EDS5 in Arabidopsis defence against viruses, we overexpressed the EDS5 transcript from the constitutively expressed Cauliflower mosaic virus 35S gene promoter in ecotype C24. In comparison to the non-transgenic control, the basal level of salicylic acid (SA) was twofold higher in the 35S:EDS5 plant. Furthermore, viral spread and the size of the hypersensitive response associated necrotic local lesions (NLL) were more highly restricted in CMV(Y)-inoculated 35S:EDS5 than in the non-transgenic plant. The heightened restriction of CMV(Y) spread was paralleled by more rapid induction of the pathogenesis-related gene, PR-1, in the CMV(Y)-inoculated 35S:EDS5 plant. The 35S:EDS5 plant also had heightened resistance to the virulent CMV strain, CMV(B2), and TCV. These results suggest that, in addition to R gene-mediated gene-for-gene resistance, EDS5 is also important for basal resistance to viruses. However, while expression of the Pseudomonas putida nahG gene, which encodes the SA-degrading salicylate hydroxylase, completely suppressed 35S:EDS5-conferred resistance against CMV(Y) and TCV, it only partially compromised resistance against CMV(B2), indicating that SA-dependent and -independent mechanisms are associated with 35S:EDS5-conferred resistance against viruses.

Long-term observation of avascular necrosis of the femoral head in systemic lupus erythematosus: an MRI study

OBJECTIVES

To assess long-term prognosis of clinically silent, early-stage avascular necrosis of the femoral head (ANFH) in patients with systemic lupus erythematosus (SLE).

METHODS

Twenty-four hips that showed ANFH by magnetic resonance imaging (MRI) in 13 patients with SLE were studied. All hips were radiographically normal and clinically asymptomatic. The percentage volume of necrotic bone was calculated at each study by dividing the sum of the necrotic areas by the sum of the femoral head areas from all MRI slices. Hips were also classified into three categories by the relation of the necrotic area to the weight bearing portion according to the system of the Japanese Investigation Committee for avascular necrosis of the femoral head, with modifications: Type A (medial lesions): 8 hips, Type B (central lesions): 4 hips, and Type C (lateral lesions): 12 hips. Patients were followed up with MRI for 12-95 (mean 51) months.

RESULTS

Fifteen hips improved (more than 15% reduction in the volume of necrosis), 5 did not change and 4 worsened during the observation period. All hips with a volume of necrotic area less than 25% showed improvement. All but one Type A hip and one Type B hip improved, while the mean volume of necrosis did not change in Type C. The volume of the necrotic area was smaller in Type A & B than in Type C hips (p < 0.001).

CONCLUSIONS

Long-term prognosis of early-stage ANFH was favorable in patients with SLE when the necrotic area was small (less than 25%).

[Two-step ultra high-dose chemotherapy with peripheral blood stem cell autotransplantation for refractory testicular cancer: a case report]

A 35-year-old male had advanced nonseminomatous germ cell tumor (stage IIIC, embryonal cell carcinoma) which proved refractory to conventional PVB combined chemotherapy. He was then treated with an ultra high-dose chemotherapy consisting of carboplatin (1.5 g/m2) and etoposide (1.3 g/m2), followed by the transplantation of peripheral blood stem cells (PBSCT) with a total of 1.9 x 10(5)/kg granulocyte colony-forming cells (CFU-GM). Because he developed lung metastasis, escalated doses of carboplatin (2.0 g/m2), and etoposide (1.8 g/m2) combined with cyclophosphamide (7.0 g/m2) were given with peripheral blood stem cell transplant of 3.2 x 10(5)/kg CFU-GM. He has remained free of any recurrence without maintenance therapy.