Chronic obstructive pulmonary (COPD) has significant extra pulmonary effects, which could induce atrophy of peripheral skeletal muscle and respiratory muscles, and significantly influence the respiratory function and quality of life. Muscle nuclear factor (NF)-κB activation plays a key role in the skeletal muscle atrophy. This article discussed the potential mechanisms on how NF-κB signaling pathway increasing protein breakdown and reducing muscle regeneration. On this basis, we explored the role of NF-κB in skeletal muscle at-rophy in patients with COPD during exercise.

Objective To investigate the influence of gonadotropin-releasing hormone (GnRH) analogues on ovarian cancer and ovarian function in vivo.Methods ES-2 cells were cultured and xenotransplanted into 36 nude mice,which were divided into 6 groups:normal saline (NS) group:NS 0.1 nd/day subcutaneous injection,and then NS 0.2 ml/week peritoneal injection; cisplatin (DDP) group:NS 0.1 ml/day subcutaneous injection,and then DDP 5 mg/kg ( diluted to 0.2 ml ) per week peritoneal injection; goserelin group:100 μg goserelin ( diluted to 0.1 ml) per day subcutaneous injection,and then NS 0.2 ml/week peritoneal injection; goserelin + DDP group:100 μg goserelin ( diluted to 0.1 ml) per day subcutaneous injection,and DDP 5 mg/kg (diluted to 0.2 ml) per week peritoneal injection; cetrorelix group:100 μg cetrorelix (diluted to 0.1 ml) per day subcutaneous injection and NS 0.2 ml/week peritoneal injection; cetrorelix + DDP group:100 μg cetrorelix (diluted to 0.1 ml) per day subcutaneous injection and DDP 5 mg/kg ( diluted to 0.2 ml) per week peritoneal injection.All the peritoneal injection started from subcutaneous injection one week later.To compare the weight of nude mice,the volumes of transplanted tumors,the expression of Ki-67 antigen in transplanted tumors,the estrus,the ratio of atretic follicles,the ratio of primary and preantral follicles,the levels of serum anti-Mullerian hormone ( AMH ),folliclestimulating hormone ( FSH),estradio ( E2 ) and progesterone (P) in each group.Results There were no significant difference in the weight of nude mice among 6 groups ( P ＞ 0.05 ),which on day 29 in NS group was ( 19.8 ±2.2) g,DDP group (20.5 ± 1.4) g,gosereline group ( 19.6 ±0.9) g,goserelin + DDP group ( 19.7 ± 1.6) g,cetrorelix group (20.7 ±2.2) g,and cetrorelix + DDP group ( 19.0 ± 1.7) g.The tumor volumes of different groups on the 12th day:NS group (241 ± 179) mm3,DDP group (78 ±20) mm3,gosereline group (78 t±55) mm3,goserelin + DDP group (64 ±48) mm3,cetrorelix group (78 ±64) mm3,or cetrorelix + DDP group (70 ± 19) mm3,in which there were significant difference between NS group and the other groups ( P ＜ 0.05 ) ; and the same result was obtained on day 15,19,22,26 and 29 ( P ＜ 0.05 ).The expression of Ki-67 in NS group was ( 33 ± 10 ) ％,in which it was higher than those in DDP group 3.5％,goserelin group 8.8％,goserelin + DDP group 1.5％,cetrorelix group (23 ± 11 ) ％,or cetrorelix + DDP group ( 8 ± 6 ) ％ ( P ＜ 0.05 ).The ratio of primary and preantral follicles in goserehn group was (71.5 ± 8.1 ) ％,in goserelin + DDP group was (62.4 ± 4.1 ) ％,in cetrorelix group was (71.2 ± 7.4) ％,and in cetrorelix + DDP group was (63.8 ±3.1 )％,in which they were much higher than that in DDP group ( 47.0 ± 4.8 ) ％ ( P ＜ 0.05 ).The level of AMH in goserelin group was ( 98 ± 27 ) ng/ml,which was much higher than that in NS group (66.2 ± 17.4) ng/ml (P ＜0.05),while there were no difference in the levelsof FSH,E2 or P among different groups ( P ＞ 0.05).Conclusion GnRH analogues could inhibit the growth of transplanted tumors in nude mice,meanwhile increase the secretion of AMH,decrease the frequencies and prolong the lasting time of estrus,decrease the ratio of atretic follicles,raise the ratio of primary and preantral follicles,which may be protect the ovarian function of nude mice.

Objective To explore the predictive value of early electroenphalography (EEG) for a malignant course in patients with large middle cerebral artery infarction (LMCAI).Methods Thirty-seven patients (20 patients with a malignant and 17 with a benign course) with stroke of >50% of the middle cerebral artery territory in early CT/MRI scan were included;Glasgow-Pittsberg Coma Scale (24 ±1 vs. 30 ±4, P =0. 003) and National Institutes of Health Stroke Scale (23 ±3 vs. 16 ±4, P =0.000) in the group with a malign course were higher than those in the group with a benign course. Early EEG was recorded within 24 h after ischemic stroke. The correlation between the change characteristics of EEG and a malignant course in patients with LMCAI was analyzed. Results The contralateral occipital background frequencies < 8 Hz (17/20 vs. 3/20, P =0.000), β frequency within the focus ≤20 Hz (19/26 vs. 7/26, P= 0-001), EEG non-reaction to stimuli (11/12 vs. 1/12, P= 0.002),slowing affecting the whole hemisphere in the lesion (17/24 vs. 7/24, P = 0. 008) and focal slowing contralateral to the lesion (16/19 vs. 3/19, P =0. 000) were significantly related with a malignant course. Whereas the contralateral occipital background frequencies ≥8 Hz (14/17 vs. 3/17, P =0. 000),β frequency >20 Hz within the focus (10/11 vs. 1/11, P =0. 001) were related with a benign course. Conclusions Early EEG has a certain predictive value for a malignant course in patients with LMCAI, and it may be used as one of the bedside monitoring approaches of LMCAI.

Objective To measure the level of diamine oxidase (DAO), and observe the intestinal motor and mucosal barrier injury after acute spinal cord injury (SCI) in rats. Methods A total of 45 Sprague-Dawley rats were randomly divided into SCI group (group A, n=15), sham group (group B, n=15) and control group (group C, n=15). SCI model was established with Allen's strike mode (10 g × 25 mm) by striking T10 spinal segment in rats. One day, three days and seven days after SCI, hind limb motor function was assessed with Basso-Beat-tie-Bresnahan (BBB) Scale in each group, the myoelectric slow wave and ileum smooth muscle contractility were measured in rats, ileum tis-sues were tested with HE staining, and the DAO content of serum was tested with ELISA kit. Results One day, three days and seven days af-ter SCI, the BBB score was significantly lower in group A than in groups B and C (P<0.001). One day, three days after SCI, the frequency and amplitude of both slow wave and contractility were lower in group A than in groups B and C (P<0.05);seven days after SCI, there was no significant difference among three groups (P>0.05). Group A showed ileal mucosal edema, lodging, inflammatory cell infiltration, and submucosal gap increase. The Chiu's score of intestinal mucosal injury was higher in group A than in groups B and C (P<0.05), as well as the serum DAO content one day and three days after SCI (P<0.05), and no significant difference was found in the serum DAO content among three groups seven days after SCI (P>0.05). Conclusion Serum DAO content may respond to the intestinal motor function and mu-cosal injury after acute SCI in rats.

To evaluate the effect of mobilization of peripheral blood stem cells (PBSC) with high dose cyclophosphamide combination chemotherapy and G-CSF in breast cancer patients, a new mobilization protocol was designed on the basis of standard combination chemotherapy regimen, in which the dose of cyclophosphamide was raised to 2 to 4 times, and G-CSF began to be used at the dose of 150 micro g twice everyday when white blood cell (WBC) decreased below 1.0 x 10(9)/L. PBSC collection was performed while WBC increased over 5.0 x 10(9)/L during bone marrow recovering. The PBSC mobilization protocol was completed in 10 patients, the median nadir of WBC was 0.8 (0.4 - 1.0) x 10(9)/L, the median time of PBSC collection was 2 (2 - 4), the median number of collected CD34(+) cells was 6.43 (1.99 - 8.75) x 10(6)/kg. The results showed that the protocol, high dose cyclophosphamide combination chemotherapy, was an optimal PBSC mobilization regimen in breast cancer patients.

This article was aimed to study the effect ofQiwei granules on the podocyte in KK-Ay mice kidney. The 28 8-week-old male KK-Ay mice were randomly divided into the model group, low-dosage, middle-dosage and high-dosageQiwei granule group. Eight C57BL/6J mice were used as the normal control. The general conditions, blood glucose and 24 h albuminuria were recorded in the experiment. After 10-week treatment, renal indexes including serum creatinine and urea nitrogen were measured. The kidneys of mice were collected and measured. The hematoxylin and eosin (HE), Masson’s Trichrome, and periodic acid-Schiff (PAS) were used on renal tissues of mice. The immunohistochemical staining for WT-1 was made. Software analysis was combined in the calculation of renal podocyte amount. Western blot was used in the detection of nephrin protein expressions in the kidney of mice. RT-PCR was used in the detection of nephrin mRNA expression. The results showed that compared with the model group, the body weight, blood glucose, 24 h albuminuria and the serum creatinine were obviously decreased after 10-week treatment ofQiwei granules. It can effectively improve the glomerular mesangial proliferation and preserve the podocyte number. Meanwhile, after the treatment ofQiwei granules, the nephrin protein expression and mRNA expression were obviously higher than the model group. It was concluded thatQiwei granules probably managed nephrin expression to improve the podocyte injury in the diabetic nephropathy of KK-Ay mice.

Objective To observe the effect of reversed circadian rhythms on wound healing of mouse corneal epithelium.Methods Ninety male C57BL/6 mice were divided into LD group (12 hours light/12 hours dark) and DL group (12 hours dark/12 hours light) by random number table,and then were placed in circadian rhythm box for 12 days.The circular area was scarped and marked as 2 mm diameter area in the center of the mouse's cornea with a golf-like knife.The dynamics of epithelial healing in the wound area were observed under microscope by fluorescein staining and hematoxylin-eosin staining.Besides,being marked antibodies of anti-Ly6G-FITC,anti-γδT-PE and DAPl,dynamic changes of the dividing cells,neutrophils and γδT cells were also investigated for every 6 hours until 42 hours.All mice were treated in accordance with the Association for Research in Vision and Ophthalmology's Statement for the Use of Animals in Ophthalmology and Vision Research and the guidelines of the Animal Experimental Committee at Jinan University (JN-A-2002-01).Results In LD group,percentage of corneal epithelial defective area were (100.000 ± 0.000) ％,(37.677 ± 5.243) ％,(14.959 ± 1.739) ％ and (0.000 ± 0.000) ％ after wounding 0 hour,6,12,18 and 24 hours.In DL group,percentage of the corneal epithelial defective area were (100.000±0.000) ％,(10.967 ± 1.065 ％) ％,(1.985 ±0.106) ％ and (0.000±0.000) ％ after wounding 0 hour,6,12,18 and 24 hours.The healing rate in DL group was higher than that in LD group,with a significant difference between them (P＜0.05).As with the uninjured corneal,thickness of corneal epithelium was (33.983 ± 1.074)μm in DL group and (33.993±0.904)μm LD group,with no statistically significant difference between them (P＞0.05).After 24 hours,thickness of corneal epithelium in DL group was (19.473 ±0.856) μm,and was more than that in LD group [(17.485±0.718)μm],with a significant difference between them (P＜0.05).Paraffin section of wounded corneal epithelium after 24 hours by hematoxylin and eosin staining showed that corneal epithelium cells arranged loosely and disorderly and were in irregular shape in both groups.The epithelium were mainly basal cells in LD group,while epithelium included basal cell and a few pinacocytes in DL group.After corneal epithelium wounded,the number of cell division,neutrophils and corneal limbus γδT cells in two groups were statistically significant difference,respectively(P＜0.05).Conclusions Reversed circadian rhythms can significantly regulate the wound healing of corneal epithelium.

Objective:To investigate the effects of different adding time of human milk fortifier on the incidence of complication and catch-up growth of low birth weight premature infants.Methods:A total of 150 low birth weight premature infants were assigned to early fortification group, middle fortification group and delayed fortification group, each 50 cases. In early fortification group, adding human milk firtifier in the enteral intake of 70-85 ml/kg·d, 70-85 ml/kg·d and 86-100 ml/kg·d in the middle fortification group and delayed fortification group, respectively. The incidence of complication and growth development during hospitalization were compared between three groups. Meanwhile, the catch-up growth of low birth weight premature infants were follow-up in three groups.Results:The weight growth rate in the early fortification group was (15.45±2.54) g kg -1·d -1, and middle fortification group was (15.13±2.21) g kg -1·d -1, and the delayed fortification group was (13.50±2.02) g kg -1·d -1, the difference was statistically significant ( F value was 10.676, P<0.01). The incidence of feeding intolerance in the early fortification group was 20.0% (10/50), he middle fortification group was 6.0% (3/50), and delayed fortification group was 4.0% (2/50), the difference was statistically significant ( χ2 value was 8.444, P<0.05). However, there was no significant difference in the incidence of complication and growth development during hospitalization between the three groups ( P>0.05). Repeated measures ANOVA showed that, the differences of body weight, body length and head circumference were statistically significant for the time main effect and group main effect ( F values were 6.291-965.062, P<0.01). In addition, the differences of body length were statistically significant for the group by time interaction ( F value was 5.752, P<0.01). The body weight in the corrected postnatal age 2 months in the early fortification group, middle fortification group and delayed fortification group were (3 017.83±347.40), (2 897.27±315.35), (2 761.22±319.23)g, and the body weight in the corrected postnatal age 3 months were (3 947.67±461.99), (3 844.85±434.68), (3 647.78±418.62)g; the body length in the corrected postnatal age 3 months of the early fortification group, middle fortification group, and the delayed fortification group were (57.87±3.97), (57.19±2.98), (54.27±2.94) cm) and head circumference were (38.13±3.75), (37.13±4.28), (35.42±2.82)cm, the difference was statistically significant ( F values were 6.987, 5.479, 15.035, 6.473, P<0.01). Conclusion:Human milk firtifier with enteral intake of 70-85 ml/kg·d contributes to catch-up growth in low birth weight premature infants, as well as not to the increases in the incidence of feeding intolerance.

Objective:To understand the level of discharge preparation of parents of premature infants in intensive care unit, and investigate the status of discharge preparation of parents of premature infants and its influencing factors.Methods:Convenient sampling was used to recruit the 202 parents of preterm infants who stayed in the neonatal intensive care unit in Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine from May to December 2018. The characteristics questionnaire and the Chinese version of Readiness for Hospital Discharge Scale-Parent Form were used to collect data.Results:The total score of parents' readiness for discharge of premature infants ranged from 111 to 290 (222.28±34.81). Multiple linear stepwise regression analysis showed that birth gestational age, birth weight, parity, parents' gender, annual family income were the influencing factors of premature parents' discharge readiness( P<0.05). Conclusions:The parents of premature infants in NICU are not well prepared for discharge. Medical staff should pay more attention to premature infants with low birth age and weight, first-born parents and low-income parents, so as to improve the discharge guidance content, help them prepare for discharge in all aspects and improve their care ability after discharge.

Platinum antitumor drugs are widely used for clinical treatment because of their unique antitumor mechanisms, significant antitumor effects, and broad antitumor spectrum. Yet shortcomings such as toxic side effects, drug resistance and cross-resistance of platinum-based drugs have limited their further application. Platinum-intercalator conjugates possess different antitumor mechanisms from those of classic platinum drugs, and have unique advantages in overcoming the disadvantages of classic platinum antitumor drugs. The platinum-intercalator conjugates can be classified into six categories based on the different DNA-intercalator: platinum-acridine, platinum-quinoline, platinum-indole, platinum-naphthalimides, platinum-anthraquinone and platinum-based antitumor agents containing other types of intercalating groups. This article summarizes the research progress of platinum-based antitumor drugs containing DNA insertion groups in recent years.