PPARγ2 functions as a tumor suppressor in a translational mouse model of human prostate cancer / 亚洲男科学杂志(英文版)

Peroxisome proliferator-activated receptors γ (PPARγ) is a master regulator that controls energy metabolism and cell fate. PPARγ2, a PPARγ isoform, is highly expressed in the normal prostate but expressed at lower levels in prostate cancer tissues. In the present study, PC3 and LNCaP cells were used to examine the benefits of restoring PPARγ2 activity. PPARγ2 was overexpressed in PC3 and LNCaP cells, and cell proliferation and migration were detected. Hematoxylin and eosin (H&E) staining was used to detect pathological changes. The genes regulated by PPARγ2 overexpression were detected by microarray analysis. The restoration of PPARγ2 in PC3 and LNCaP cells inhibited cell proliferation and migration. PC3-PPARγ2 tissue recombinants showed necrosis in cancerous regions and leukocyte infiltration in the surrounding stroma by H&E staining. We found higher mixed lineage kinase domain-like (MLKL) and lower microtubule-associated protein 1 light chain 3 (LC3) expression in cancer tissues compared to controls by immunohistochemistry (IHC) staining. Microarray analysis showed that PPARγ2 gain of function in PC3 cells resulted in the reprogramming of lipid- and energy metabolism-associated signaling pathways. These data indicate that PPARγ2 exerts a crucial tumor-suppressive effect by triggering necrosis and an inflammatory reaction in human prostate cancer.

Effectiveness and feasibility of early essential newborn care during term cesarean section / 中华围产医学杂志

Objective To explore the effects of early essential newborn care (EENC) on short-term maternal and neonatal health and to evaluate the satisfaction and acceptability of both patients and medical staff in the operating room regarding the implementation of EENC during term cesarean section(CS). Methods Two hundred gravidas who underwent CS in Wenzhou Medical University Affiliated Women and Children Hospital from January 2018 to April 2018 were recruited in this prospective study. According to the odd or even number of their medical records, these women were randomly divided into EENC or control group, 100 in each. EENC was offered to those in the EENC group immediately after birth, including drying the newborn immediately and thoroughly, mother–infant skin-to-skin contact at least 90 min and initiating the first breastfeeding, and delayed cord clamping until l-3 min after birth. Routine neonatal care was provided to the control group, including regular drying, insufficient skin-to-skin contact and cord clamping within 1 min after birth. Differences were compared between the two groups in the incidence of abnormal pulse, low oxygen saturation, hypothermia and mild asphyxia from the neonatal aspect and the incidence of postpartum hemorrhage and early initiation of breastfeeding from the maternal aspect. The acceptability and satisfaction of all the participants and the medical staff were also analyzed. t-test and Chi-square test were used as statistical methods. Results All of the 200 participants were finally analyzed. In the EENC group, the incidence of neonatal hypothermia [2% (2/100) vs 13% (13/100), χ2=8.721, P=0.003] and maternal postpartum hemorrhage [1% (1/100) vs 6% (6/100), χ2=5.701, P=0.035] were lower comparing to the control group, while the initiation rate of early breastfeeding was higher [56% (56/100) vs 5% (5/100), χ2=61.352, P<0.001]. There was no significant difference in the incidence of neonatal abnormal pulse, low oxygen saturation or mild asphyxia between the two groups (all P>0.05). The scores of maternal satisfaction (24.6±0.4 vs 23.4±1.9, t=6.443, P=0.001) and acceptability (24.3±0.5 vs 23.5±1.4, t=5.436, P=0.001) in the EENC group were also significantly higher than those in the control. For the obstetric operation team, the acceptability scores among obstetricians (22.6±0.8 vs 21.6±1.3, t=2.379, P=0.019), instrument nurses (23.2±0.9 vs 21.3±1.1, t=13.592, P<0.001) and anesthetists (22.6±0.9 vs 21.5±1.7, t=5.625, P=0.001) in the EENC group were higher than those in the control group. However, no significant difference was observed in the acceptability among rounding nurses between the two groups (P=0.086). Conclusions EENC during CS could stabilize the neonatal temperature, reduce postpartum hemorrhage, promote early breastfeeding and improve the maternal satisfaction as well as the acceptability of both obstetric operation team and puerperae. There is a clinical significance to promote EENC during CS.

Effects of kangaroo mother care during cesarean section on neonatal health parameters of late preterm newborns within "golden hour" / 中华围产医学杂志

Objective To evaluate the effects of kangaroo mother care (KMC) during cesarean section on neonatal health parameters in the "golden hour" of late preterm infants. Methods A total of 120 singleton pregnant women undergoing preterm cesarean section (34-36+6 gestational weeks) from January 1 to December 31, 2018 in Jiaxing Women and Children's Hospital Affiliated to Wenzhou Medical University were prospectively enrolled and divided into two groups (observation and control groups) with 60 cases in each by random number table method. During cesarean section, the both groups received the thorough drying immediately and delayed cord clamping, in addition, the observation group adopted KMC, while the control group received routine maternal and infant care. Several parameters including changes in body temperature, crying, respiration, oxygen saturation and other vital signs, as well as the incidence of hypothermia, transfer to the Department of Neonatology and the success rate of early breastfeeding initiation during the "golden hour" were compared between the two groups. Satisfaction of obstetricians, pediatricians, the pregnant women and their families to KMC and routine maternal and infant care were compared. Two-independent sample t test and Chi-square test were used as statistical methods. Results In total, 113 cases (58 in the observation group and 55 in the control group) were finally analyzed. The body temperature of the late preterm infants at 5 and 10 min after birth in the observation group was higher than that in the control group (36.5 vs 36.0 ℃, 36.4 vs 35.8 ℃, t=11.756 and 7.512, both P<0.05), and the body temperature during 15 min-1 h after birth was also higher in the observation group but without statistical significance (all P>0.05). The observation group had a lower incidence of hypothermia [0% (0/58) vs 15% (8/55), χ2=9.079, P<0.001] and a higher success rate of early breastfeeding initiation [86% (50/58) vs 58% (32/55), χ2=11.137, P<0.001] than the control group. The satisfaction scores of obstetricians (19.3±1.1 vs 13.4±1.9, t=20.517), pediatricians (18.2±1.8 vs 12.6±2.1, t=15.382), gravidas (19.6±0.4 vs 13.6±1.6, t=27.723) and their family members (18.2±0.9 vs 15.3±1.1, t=11.535) were all higher in the observation group than those in the control group (all P<0.001). Conclusions KMC during cesarean section can improve the body temperature of late premature infants in the "golden hour", reduce the occurrence of hypothermia, facilitate early initiation of breastfeeding and improve the satisfaction of doctors and patients on health care.

Expression of nuclear export factor CRM1 and p27 in glioma / 中华病理学杂志

<p><b>OBJECTIVE</b>To investigate the expression of nuclear export factor CRM1, Ser10-phosphorylated p27 and p27 in human gliomas.</p><p><b>METHODS</b>The expression of CRM1, Ser10-phosphorylated p27 and p27 were investigated in 70 cases of human gliomas and 10 specimens of the normal brain tissue by immunohistochemical technique and Western blot.</p><p><b>RESULTS</b>There were significant differences on the expression levels of CRM1, Ser10-phosphorylated p27 and p27 among normal brain tissue, gliomas of grades II and gliomas of grades III plus IV (P < 0.01). The expression of CRM1 in gliomas was inversely correlated with the expression of p27 (r(s) = -0.727, P < 0.01) and positively correlated with the expression of Ser10-phosphorylated p27 (r(s) = 0.954, P < 0.01) and Ki-67 (r(s) = 0.799, P < 0.01). Moreover, the expression of Ser10-phosphorylated p27 was inversely correlated with p27 (r(s) = -0.744, P < 0.01) and positively correlated with Ki-67 (r(s) = 0.785, P < 0.01).</p><p><b>CONCLUSIONS</b>CRM1, through recognizing and binding with Ser10-phosphorylated p27, may promote moving of p27CRM1 from its original locating sites; act as a critical signaling component in the proliferative process of glioma cells and then, plays an important role in the development of gliomas.</p>

Effect of Shenfu Injection on Neuron Apoptosis Caused by Hypoxic-Ischemic Brain Damage in Neonatal Rats′ Hippocampus / 实用儿科临床杂志

Objective To study the effect of shenfu injection on the neuron apoptosis in hippocampal CA1 region of newborn with hypoxic-ischemic brain damage(HIBD).Methods The experiment included 2 parts.One was to measure the apoptosis rate by the flow cytometry,and the other was to investigate the expression of Bcl-2 and Bax of neurons in left hippocampal CA1 region.Models of postnatal 7-day Sprague-Dawley(SD)rats with HIBD were established,and were equally divided into 4 groups:sham operation(group S),control group(group C),shenfu injection pretreatment(group P),and shenfu injection treatment(group SF).The neuron apoptosis rate in hippocampal CA1 region in every group was measured at 2 h before and 2,12,24 h,3,7,14 and 28 d after hypoxic ischemic(HI) insult.The expressions of Bcl-2 and Bax were performed by immunohisochemistry.Results The apoptosis of neuron in hippocampal CA1 region in group P and group SF after HI insult was significantly less than that of group C(P