Intrauterine transplantation of autologous menstrual blood stem cells increases endometrial thickness and pregnancy potential in patients with refractory intrauterine adhesion.

AIM: This study was designed to evaluate the effects of intrauterine transplantation of menstrual blood stem cells (MenSCs) on endometrial thickness and pregnancy outcomes in patients with refractory intrauterine adhesion (IUA). METHODS: This study included a group of infertile women (n = 12, age 22-40 years), with refractory IUA. Autologous MenSCs isolated from the women's menstrual blood were expanded in vitro and transplanted into their uteruses, followed by hormone replacement therapy. Transvaginal ultrasound examination was performed to assess the endometrial thickness. Transabdominal ultrasound was conducted to detect pregnancy outcome. RESULTS: Autologous MenSCs were successfully isolated and expanded from menstrual blood and transplanted into the uterus of each patient. A significant improvement of the endometrial thickness was observed from 3.9 ± 0.9 to 7.5 ± 0.6 mm (P < 0.001). No adverse reaction was observed. The duration of menstruation was increased from 2.4 ± 0.7 to 5.3 ± 0.6 days (P < 0.001). Five out of 12 patients achieved clinical pregnancy and the pregnancy rate was 41.7%. CONCLUSIONS: Intrauterine transplantation of autologous MenSCs results in regeneration of endometrium, a prolongation of menstrual duration and an increase rate of pregnancy in patients with refractory IUA.

Case-control retrospective study of pulmonary tuberculosis in heroin-abusing patients in China.

The objective of this study was to observe the clinical significance of pulmonary tuberculosis in heroin abusers. A case-retrospective study was done to analyze clinical symptoms and severity based on chest X-rays, results of sputum bacterial test and effects of treatment. The clinical symptoms in patients with tuberculosis and heroin addiction were more severe than those in the nonheroin-addicted group. An examination of chest X-rays showed that tuberculosis lesions were involved in two or more lung fields in 80% of the heroin-addicted cases. In 73.3% of the cases, sputum bacterial tests were positive for tuberculosis. After anti-tuberculosis treatment, chest X-rays showed a recovery rate of 46.67%, caves became smaller by 41.7%, and the sputum negative conversion rate was 45.5%. There are significant differences compared with the control group (p < 0.05). The patients with pulmonary tuberculosis combined with heroin addiction had more severe clinical symptoms, more lesion zones found in their chest X-rays, higher sputum tuberculosis positive rates, and poorer treating effects.