Hereditary nonpolyposis colorectal cancer (HNPCC) is a distinct autosomal dominant syndrome, accounting for 5%-10% of the total colorectal cancer population. To date, we have noticed that patients with HNPCC inherit a germline mutation in one of the genes responsible for repair of DNA mismatch errors. Tumors of HNPCC show a high frequency of microsatellite instability. Identifying individuals afflicted with HNPCC has implications for surgical management, prognosis, follow up, and surveillance of HNPCC patients and family members at risk.

Purpose:To explore the clinicopathologic features of sporadic colorectal cancer patients with microsatellite instability(MSI) and the correlation between the microsatellite instability and the DNA ploidy.Methods:Detecting microsatellite instability with two sites(BAT25 and BAT26),conduct flow cytometry to analyze the DNA ploidy among 71 sporadic colorectal cancer patients and probe into the relationship between the microsatellite instability phenotype and the clinicopathologic characteristics as well as the DNA ploidy.Results:The positive rate of the microsatellite instability among sporadic colorectal cancer patients was 9.86 percent.The microsatellite instability phenotype was correlated with the tumor site and the histopathologic type and the differentiation grade with the P value less than 0.05,while it was independent of the gender,age,lymph node metastasis and Dukes' stage.The proportion of right colon cancers and poorly-differentiated adenocarcinomas of sporadic colorectal cancers showing microsatellite instability was higher than that of microsatellite stable ones.18 and 50 cases showed diploidy and aneuploidy respectively.5 cases of MSI were diploid,There was statistically significant correlation between the microsatellite instability phenotype and the DNA ploidy(P=0.012).Conclusions:Sporadic colorectal cancers with microsatellite instability were prone to occur in the right colon and to be poorly-differentiated adenocarcinomas and inclined to be diploid.

Objective To investigate the clinicopathologic features of sporadic colorectal cancers with CpG island methylator phenotype. Methods The methylation of the promotors of the five genes including p14, hMLH1, p16, MGMT and MINT1 were detected using methylation specific PCR in 71 patients to determine the clinicopathologic characteristics of sporadic colorectal cancers with CpG island methylator phenotype. Results Fifteen out of 71 (21. 1%) patients were positive for the CpG island methylator phenotype. The proportion of the right-sided colonic cancers(40. 0% vs. 12. 5% , P

Stroke is one of the most common diseases among middle and senior - aged people,and depressive disorder,which hinders severely recovery and prognosis,is one of the complications of stroke.This paper analyzes the efficiency of social intervention mode on patients with post - stroke depressive disorder,and comes up with the conclusion that social intervention mode can not only help to ameliorate the occurrence of post - stroke depressive disorder,but also promote the recovery of patients' nervous function.Therefore,the social intervention mode can be regarded as an effective means for medical treatment.

Objective To assess the effect of thoracoscopic surgery under laryngeal mask anesthesia and explore the nursing strategies. Methods Thirty-five patients from April to December in 2014 undergoing video-assisted thoracoscopic surgery (VATS) were given intubation anesthesia and another thirty-five ones undergoing the same surgery in 2015 received laryngeal mask anesthesia. The two groups were compared in terms of surgery conditions, surgery complication and ambulation time. Results No significant differences were found in surgery time or blood loss between two groups (P>0.05). The postoperative waking time in the mask anesthesia group was significantly shorter than that of the intubation anesthesia group (P<0.05), and ambulation time was significantly shortened (P<0.05). The rates of throat discomfort, hoarseness and gastrointestinal reactions were significantly lower. Conclusions Laryngeal mask anesthesia used in small thoracoscopic surgery for airway management is safe and feasible. Combined with training in respiration and limb function, better analgesia and nursing, it can keep away complications related to intubation anesthesia, shorten hospital stay and accelerate postoperative rehabilitation.

Objective To evaluate the clinical outcomes of intravesical instillation of resiniferatoxin (RTX) for the treatment of overactive bladder(OAB). Methods 30 patients (28 females and 2 males) included in the study.The mean age was 39 years (range,21 to 60 years).The mean course of the illness was 6.9 years (range,2 to 30 years).The voiding diaries of pretreatment showed that frequency at day time varied from 9 to 26 times with a mean of 15.0 times;frequency at night ranged from 3 to 13 times with a mean of 6.4 times.Of the 12 patients undergoing cystoscopy 10 had chronic inflammation in both mucous and submucous.Based on biopsy 1 case was pathologically diagnosed as glandulous cystitis,2 as interstitial cystitis,and others as chronic inflammation.100 ml of RTX at a concentration of 100 nmol/L was intravesically instillated in all the patients and was retained within the bladder for 30 minutes. Results RTX instillation had no vesical irritation and other adverse effects,and no local anesthesia was required.The symptoms were improved immediately in all the patients after 1 day of RTX intervention.The decreases in both diurnal (5 to 15 times,mean 8.9 times) and nocturnal (0 to 5 times,mean 3.0 times) frequencies were significant(P

Objective To observe the growth and the development of primordial spermatogenic cells by allografting Kun-ming neonatal mouse testes into athymic nude mice.Methods Neonatal mouse testes were grafted under the back skin of nude mice (n=29). Grafts were taken out at the post-grafting day 30-110 and observed on the growth and the appearance, the structure of seminiferous tubules as well as the development of spermatogenic cells and the stage of seminiferous epithelium.(Results) The graft growth in all 29 recipient animals was observed, and the mass of grafts was significantly increased from (0.73)?(0.05) mm in diameter and (5.67)?(0.72) mg in wet weight pre-grafting to (6.75)?(0.73) mm and (113.12)?(78.23) mg post-grafting, respectively. The structure of seminiferous (tubules) inside grafts was clearly seen under a light microscope. And the histological analysis (demons)-(trated) a complete spermatogenesis with all levels of spermatogenic cells including sperm and stage I-XII of the seminiferous epithelium could also be identified.Conclusion Neonatal mouse testes could continuously grow and develop under the back skin of castrated nude mice, which would therefore be a useful tool for investigations on the proliferative and developmental pattern of spermatogenic cells and the regulation mechanism of spermatogenesis.

Rheumatoid arthritis(RA) is very common in immune rheumatism, with high disease incidence and long course, hard to cure. The medicines and bio-preparation used in treating RA in modern medicine are difficult to spread and for long application owing to their unsatisfactory effect or much toxic or side effects. However, the acupuncture has definite effect without side effects. As the unique therapy in acupuncture field—abdominal acupuncture, can it bear the task of treating RA The article makes analysis and discussion on its availability.

Purpose:To investigate the susceptible factors and treatment against cross infection in hospital of cancer patients.Methods:174 cases of cross infection in hospital of cancer patients from 1997 to 1999 were analyzed for infective site, infective agent and infectious bacteria. Results:174 cases of cross infection in hospital of cancer patients were found, which was 10.45% of the in paitents of the same period. The majority (108/174) had infection of tissues and organs within irradiation fields after radiotherapy. Respiratory tract infection rate was 76.43%. 16 cases (40.0%) were found to have secondary infection of digestive canal after chemotherapy in the 40 cases of infection of digestive canal. Bone marrow deression or chronic failure and long term decubitus were also causes of infection. In addition, mycotic infection was 43.42% (33/76) in bacteriological tests with bad prognosis.Conclusions:Cross infection in the hospital occurs that patients enfeebled by radiotherapy, chemotherapy, chronic bone marrow failure and long term decubitus. Attention should be paid to the possibility of mycotic cross infection in hospitals, as the prognosis could be quite serious. As soon as the diagnosis is confirmed, early and full dose treatment by anti mycotic drugs should be given.

Every stage of tumor initiation and development closely relates to immune regulation as tumor cells tend to evade attacks from immune system by employing the programmed death 1 (PD-1)/ programmed death-ligand 1 (PD-L1) interaction.Therefore,targeting the PD-1/PD-L1 pathway has become an attractive approach for cancer immunotherapy.Radiotherapy has long been considered a local tumor treatment modality and it is immune-inhibitory.However,accumulated evidence has shown that radiotherapy might enhance immune function by eliminating the tumor mass and has become a systemic tumor treatment modality.These observations indicate a strong rationale that the radiotherapy and anti-PD1 and anti-PD-L1 immunotherapy may work synergistically to provide a powerful anti-tumor effect.This review discusses current progresses,challenges and perspectives of this novel combination treatment modality.