De novo interstitial deletion in the long arm of chromosome 11: a case report

The 11q terminal deletion disorder is a rare genetic disorder associated with numerous clinical features. A few case reports have been made about de novo interstitial deletion of chromosome 11q. However, due to the heterogeneity in size and position of the deletions, a clear genotype-phenotype correlation is not easily made. Here we report a case interstitial 20.5-Mb deletion at chromosome 11q13.4q21, as confirmed by array comparative genomic hybridization. Dysmorphic features such as coarse facial features, congenital laryngomalacia, oblique inguinal hernia, high-arched palate, and camptodactyly were observed in the subject. The present case broadens the spectrum of clinical findings observed in individuals with 11q interstitial deletion.

The influence of interval between conization and laparoscopic radical hysterectomy on the morbidity of patients with cervical cancer

OBJECTIVE

To evaluate the correlations between postoperative sequelae and the intervals between conization and subsequent laparoscopic radical hysterectomy (LRH) and pelvic lymphadenectomy in patients with cervical cancer.

MATERIALS AND METHODS

A retrospective study was conducted in a tertiary care university hospital. The medical records of cervical cancer patients undergoing LRH and pelvic lymphadenectomy between April 2005 and August 2011 were reviewed. The subjects were divided into three groups according to time from conization to LRH: group 1 (within six weeks, n = 17), group 2 (> six weeks, n = 38), and group 3 (no previous conization, n = 40).

RESULTS

The three groups showed no significant differences with respect to patient and tumor characteristics, intraoperative variables such as surgical time, blood loss, conversion to laparotomy, and perioperative morbidity, while the complications in group 1 showed a significant difference compared to groups 2 and 3.

CONCLUSIONS

LRH is feasible for the treatment of cervical cancer patients with previous conization and the appropriate time interval is after six weeks. A careful separation of the bladder and ureters from the cervix is recommended to minimize morbidity associated with this surgery.

[Resolution of overlapping mass spectra of azobiphenyl dyes by subwindow factor analysis technique]

Subwindow factor analysis(SWFA) has been proven to be an effective data processing technique. In this paper, it is applied to the resolution of overlapping GC-MS peaks. A two-component sample of azobiphenyl dyes (3,3'-dichlorobenzidine, 4,4'-methylene-bis-(2-chloroaniline)) was prepared and a data set from a mixture of azobiphenyl dyes recorded by GC-MS was obtained. Then the overlapping GC-MS data were resolved by SWFA. The results show that both mass spectrum and chromatogram of components can be resolved from multicomponent overlapping data. The resolved spectra were in good consistence with the mass spectra of standard samples. At the same time, overlapping GC-MS data were also resolved by WFA. In Comparing with WFA technique, SWFA is more convenient, and the speed of resolution could be increased.

An experimental study of pituitary transplantations in rabbits

Experimental pituitary transplantations were carried out between the New Zealand white and American chinchilla rabbits. These two kinds of experimental rabbits were of different genotypes. The grafts were transplanted underneath the median eminences of the recipients after hypophysectomy. The rabbits with the transplants were treated with cyclosporine (CsA) and prednisone for the first month. Blood samples were taken at regular intervals for the determinations of serum thyroxine, prolactin and luteinizing hormone. The results suggested that neonatal grafts could survive and function almost normally with the aid of CsA and prednisone, but not without them. The results also disclosed that the interrelationship between the pituitary graft and the host's hypothalamus could be established. Pituitary transplantation from adult rabbit donors failed even though the recipients had been treated with CsA and prednisone in our experiment.