ObjectiveTo study the effect of anti-oncogene p15 and p16 on the proliferation of human cholangiocarcinoma cell line.MethodsThe cDNA of anti-oncogene p15 and p16 was constructed into pcDNA3-neo plasmid carrier. The human cholangiocarcinoma cell line QBC939 were transfected with the recombinants pcDNA3p15 and pcDNA3p16 using lipofectin, respectively. The expression products were analyzed by Western blot. Cell viability and death were measured with MTT assay. Cell cycle was determined by flow cytophotometry and the formation of cell clone was detected. Results The growth of QBC939 cells was inhibited. The flow cytophotometry verified p15 and p16 induced QBC939 cell G1 blockade. Conclusion Anti-oncogene p15 and p16 together lead to the inhibition of cell cycle.

Objective To study the impact of exogenous growth hormone (GH) on the levels of insulin-like growth factor-Ⅰ and -Ⅱ (IGF-Ⅰ, -Ⅱ) of the pancreatic cancer tissue and the small intestine mucosa of the host. Methods In situ hybridization was performed on pancreatic cancer cell lines (SW-1990) and inoculation tumor of the host to determine the location of the mRNA transcript encoding IGF R-Ⅰ,-Ⅱ. Athymic nude Balb/c mice were inoculated with SW-1990 cells. After inoculated tumors have become palpable, animals were randomized to receive GH (4 mg/kg once daily for 2 weeks) versus saline control. After the animals were killed at time point, tissues (tumor and small intestine) were rapidly incised for subsequent immune blotting analysis. Results Strong IGF R-Ⅰ,-Ⅱ mRNA hybridization signal could be detected in pancreatic cancer cell. There was no statistically significant difference between the level of IGF-Ⅰ, Ⅱ in the tumor of the GH and NS groups after 1 hours of GH injection (P>0.05). GH augmented the expression of IGF-Ⅰ(1 h : 0.33±0.05, P<0.05 ; 2 h : 0.34±0.04, P<0.05 ; 6 h:0.34±0.05, P<0.05), -Ⅱ(1 h : 0.36±0.05, P<0.05) in the small intestine mucosa of the host. Conclusions The expression of IGF-Ⅰ, Ⅱ in the small intestine mucosa of the host was elevated by GH, but not in the inoculation tumor in vivo. The discrepancy of GH-IGF pathway between inoculation tumor and small intestine of the host may help to explain the phenomena that GH doesn't accelerate growth of pancreatic tumor in vivo.

ObjectiveTo explore the feasibility, safety and clinical value of laparoscopic Rouxen-Y cystojejunostomy in the treatment of pancreatic pseudocyst. Method Four patients with pancreatic pseudocyst received totally laparoscopic pancreatic pseudocystojejunostomy. The data on intraoperative bleeding, operative time, postoperative time to get out of bed, time of first flatus/bowel motion, complication and duration of hospital stay were collected and analyzed retrospectively. ResultsAll operations were carried out successfully with laparoscopic surgery. The mean operative time was 90 min. The average intraoperative blood loss was 40 ml. The mean postoperative time to get out of bed was 1.5 d, and the mean time of first flatus/bowel motion was 2. 3 d. All patients recovered smoothly without any pancreatic fistula. The average hospital stay was 7 days. Fever, pancreatitis,adhesive intestinal obstruction and other complications did not occur. ConclusionsTotally laparoscopic Roux-en-Y pancreatic pseudocystojejunostomy was an efficacious, safe, and minimally invasive procedure.

Objective To investigate the effect of GH on proliferation of pancreatic cancer cells and observe the features of IGF-IGFBP3 pathway in the host after GH administration. Methods Pancreatic cancer cells (SW-1990,PANC-1 and P3) during exponential growth stage were harvested and cultured in medium containing growth hormone (50 ng/ml). After 24, 48 and 72 hours, cells were counted using a Coulter Counter. Thirty-five Athymic nude Balb/c mice were inoculated with SW-1990cells. When tumors became palpable after inoculation, animals were randomized to receive GH points (1 h, 2 h, 6 h, 24 after the last injection), plasma samples were gathered for subsequent ELISA determination and liver was rapidly incised for immune blotting analysis. Results The results revealed that GH stimulated cell growth in vitro. GH elevated levels of IGF-Ⅰ , Ⅱ at the 1st , 2nd , 6th hour after the last injection. GH augmented the expression of IGFBP3 in the liver of the host in vivo (1 h, 2 h, 6 h, 24 h, respectively). Conclusion Such proteins as IGF- Ⅰ and Ⅱ might be associated with mechanism of last effect of GH on tumor host. The up-regulation of IGFBP3 by GH administration in the host may help to explain the phenomena that GH doesn't accelerate growth of pancreatic tumor in vivo.

Objective To investigate the expression of pSTAT5 in 7 pancreatic carcinoma cell lines,and the change of expression of pSTAT5 in pancreatic carcinoma cells SW1990 after growth hormone (GH) treatment, and explore its molecular mechanism. Methods Human pancreatic carcinoma cell lines (SW1990, Cap-1, Colo, Mia, AsPc, P3, PANC1) were cultured in vitro, and Western blotting was used to detect the expression of pSTAT5 in these cell lines. SW1990 in exponential growth phase was collected and nude Balb/c mice were inoculated with SW1990 cells. When tumors became palpable after inoculation, mice (normal saline group). 1 h, 2 h and 24 h after the last dose of GH treatment, the mice were sacrificed.Western blotting was used to detect the expression of pSTAT5 in SW1990 and inoculation tumor cells after GH injection. Results Positive expression of pSTAT5 was observed in all human pancreatic carcinoma cell lines (SW1990, Cap-1, Colo, Mia, Aspc, P3, PANC1). 5 minutes after GH (50 ng/ml) stimulation, the expression of pSTAT5 in SW1990 was 0.57 ±0.05, which was significantly increased; and it reached 0.64 ±0.04 at 10 minutes, then decreased to 0.39 ±0.03 at 15 minutes, however, it remained higher than that in the control group at 1 h (0.33 ± 0.02 vs 0.25 ± 0.06), and its expression at 2 h was 0.26 ± 0.03 and returned to the normal level. The expression of pSTAT5 in xenograft was not significantly changed. Conclusions GH could rapidly up-regulate the expression of pSTAT5 in SW1990 but the effect lasted for a relatively short period. GH had no significant effect on the expression of pSTAT5 in xenograft.

Oxidative stress is a hallmark in the pathogenesis of Parkinson disease (PD), which involves the selective loss of nigral dopaminergic neurons in PD. Resveratrol (3,5,4'-trihydroxy-trans-stilbene) is well known for its powerful antioxidant property and a wide range of other biological effects. In this study, we investigated the protective effect of resveratrol derived from Rhizoma Et Radix Polygoni Cuspidati and its liposomal form on the nigral cells of PD rats induced by unilateral microinjection of 6-hydroxy dopamine in the striatum. The results showed that after 14 days gavage of resveratrol and resveratrol liposome respectively (20 mg x kg(-1) WB per day), the abnormal rotational behavior of PD rats were deceased evidently, the numbers of total nigral cells, total nigral neurons and TH immuno-positive neurons were more than that of PD rats without given resveratrol or resveratrol liposome, simultaneously, the number of apoptotic nigral cells were decreased obviously. The results also showed that resveratrol and resveratrol liposome could decrease the total ROS activity, increase the total antioxidant capability of the nigral tissues. All the data indicated that resveratrol liposome performed stronger effects than resveratrol except for behavioral improvement. Our study confirmed that resveratrol derived from Rhizoma Et Radix Polygoni Cuspidati and its liposomal form could inhibit the loss of dopaminergic neurons of PD rats, the underlying mechanism may be attributed to their radical scavenging effect and antioxidant property. Due to presumably increased bioavailability, resveratrol liposome possesses the stronger therapeutic effect and may become a better clinical agent for the treatment of PD than free resveratrol.
Animals ; Antioxidants ; metabolism ; Behavior ; drug effects ; Cell Death ; drug effects ; Disease Models, Animal ; Drugs, Chinese Herbal ; pharmacology ; Liposomes ; pharmacology ; Neurons ; drug effects ; metabolism ; Neuroprotective Agents ; pharmacology ; Oxidative Stress ; drug effects ; Parkinson Disease ; drug therapy ; pathology ; Rats ; Rats, Wistar ; Reactive Oxygen Species ; metabolism ; Stilbenes ; pharmacology ; Substantia Nigra ; drug effects ; metabolism ; pathology

Objective:To evaluate the efficacy of gonadotropin-releasing hormone agonist (GnRH-a) pretreatment before total hysterectomy for adenomyosis patients with uterine volume ≥12 gestational weeks and moderate or severe anemia.Methods:From January 2018 to March 2023, 689 patients who underwent total hysterectomy for adenomyosis in the First Affiliated Hospital of Zhengzhou University were retrospectively analyzed. According to the preoperative medication, they were divided into study group (127 cases) and control group (562 cases). Patients in the study group underwent GnRH-a pretreatment for 3 cycles before surgery, and the control group received operation directly. SPSS 26.0 software was used to perform 1∶1 matching for the two groups of patients through the propensity score matching method. Matching variables included age, body mass index, gravidity, parity, history of pelvic and abdominal surgery, menstrual cycle, menstrual period, dysmenorrhea score, initial diagnosis of cancer antigen 125 (CA 125), uterine volume and hemoglobin value. The dysmenorrhea score, uterine volume, hemoglobin value and CA 125 level before and after GnRH-a pretreatment in the study group were compared. And the duration of operation, intraoperative blood loss, postoperative white blood cell count, perioperative blood transfusion cases, postoperative disease rate, duration of hospitalization, total hospitalization cost between the two groups were compared. Results:With propensity score matching, 119 patients in the study group and 119 patients in the control group were finally enrolled in this study. In the study group, before and after the treatment with GnRH-a, the dysmenorrhea score (7.4±1.7 vs 5.6±1.8), uterine volume [(362±160) vs (233±126) cm 3], hemoglobin value [(74.1±10.7) vs (102.5±13.5) g/L], and CA 125 level [(104±76) vs (64±51) kU/L] were statistically different (all P<0.05). There were statistical differences of operation time [(86±18) vs (116±31) minutes], intraoperative blood loss [(24±9) vs (43±22) ml], white blood cell count after 1 day of operation [(9.80±0.10)×10 9/L vs (9.90±0.10)×10 9/L], number of perioperative blood transfusion case [5.9% (7/119) vs 61.3% (73/119)], postoperative disease rate [5.0% (6/119) vs 16.0% (19/119)], hospitalization duration [(7.1±1.6) vs (7.9±1.6) days], and total hospitalization cost [(35 323±5 275) vs (37 159±5 640) yuan] between the study group and the control group (all P<0.05). Conclusion:The pretreatment of using GnRH-a before total hysterectomy for adenomyosis patients with uterine volume ≥12 gestational weeks and moderate or severe anemia is not only conducive to improving dysmenorrhea, signs of anemia, reducing uterine volume, but also conducive to the implementation of surgery, reducing intraoperative and postoperative complications, and reducing hospital costs.

Objective:To estimate the status of pregnancy complications among women with polycystic ovary syndrome (PCOS) through a systematic review of published literatures.Methods:Systematic literature searches were conducted in PubMed,Web of Science,Medline,Embase,Cochrane Library,China National Knowledge Infrastructure (CNKI),Wanfang,Weipu and China Biology Medicine disc (CBMdisc),as well as the relevant articles published from inception to April 1st 2017,which reported the prevalence of pregnancy complications among women with PCOS.Random effective models were used to calculate pooled prevalence and 95％ confidence intervals.The Newcastle-Ottawa Scale (NOS) was used to evaluate the quality of those included studies.Subgroup analyses were used to evaluate the influence of overweight/obesity and insulin resistance before pregnancy on the estimates of pregnancy complications among women with PCOS.Results:Fifty-nine studies involving 13 378 PCOS women and 49 395 non-PCOS women were included.Among women with PCOS,pooled estimates were 20.26％ for gestational diabetes mellitus,13.94％ for hypertensive disorder ofpregnancy,64.16％ for caesarean section,13.35％ for preterm birth,9.84％ for macrosomia,5.88％ for low birth weight,5.25％ for early gestational age,8.45％ for late gestational age,1.93％ for neonatal malformations,0.88％ for perinatal mortality and 3.71％ for neonatal asphyxia.And the estimates of gestational diabetes mellitus,hypertensive disorder of pregnancy,caesarean section,preterm birth,macrosomia and neonatal asphyxia among women with PCOS were significantly higher than those in women without PCOS (all P＜0.05).Subgroup analysis showed the estimates of gestational diabetes mellitus,macrosomia and late gestational age among PCOS women who were overweight/obesity before pregnancy were significant higher than those among PCOS women with normal BMI (all P＜0.05);and compared to PCOS women without insulin resistance prior to pregnancy,PCOS women with pre-pregnancy insulin resistance were at an increased risk for gestational diabetes mellitus,preterm birth and macrosomia (all P＜0.05).Conclusion:PCOS in pregnancy is associated with high rates of pregnancy complications.It is an important risk factor for pregnancy complications.

OBJECTIVE: To investigate the risk factors for type 2 diabetes complicated with hypertension in adult residents in Liuyang, Hunan Province, P. R. China.
 METHODS: The residents aged at or over 18 were selected through a method of multi-stage cluster random sampling from 10 towns in Liuyang. Questionnaires, physical measurements and laboratory tests were conducted. Type 2 diabetes complicated with hypertension were served as an experimental group, while simple diabetes, non-diabetes and non-hypertension (healthy control), or non-complication and healthy group (simple hypertension, simple diabetes, and healthy group) were served as control group, respectively. Three kinds of logistic regression model were used to analyze the risk factors for type 2 diabetes complicated with hypertension.
 RESULTS: A total of 5 669 residents were included in the analysis, and the response rate was 97.74%. The results showed that the prevalence of type 2 diabetes complicated with hypertension of residents at or over 18 years old in Liuyang was 2.6% (95%CI: 2.2%, 3.1%). Logistic regression analyses demonstrated that for people at or over 60 years old, obesity and abnormal triglyceride were the independent risk factors for type 2 diabetes complicated with hypertension.
 CONCLUSION Aging, obesity and abnormal triglyceride can increase the risk of type 2 diabetes complicated with hypertension in adult residents in Liuyang.
Adult ; Aging ; China ; epidemiology ; Diabetes Mellitus, Type 2 ; complications ; epidemiology ; Humans ; Hypertension ; complications ; epidemiology ; Logistic Models ; Obesity ; epidemiology ; Prevalence ; Risk Factors ; Surveys and Questionnaires ; Triglycerides ; blood

The causes for male sexual orientation are complicated, which have not yet been clarified. Recent years have witnessed fruitful progress in the field of biology, while the impact of environment has received little attention. Adverse childhood experiences (ACEs), identified as a special environment in the early stage of development, can affect the individual phenotype by DNA methylation. Given the relationships among male sexual orientation, ACEs, and DNA methylation, as well as based on the existing theory, this article proposes the model "ACEs-DNA methylation-male sexual orientation"from the perspective of environment and epigenetics, aiming to provide a theoretical basis for future research.
Adverse Childhood Experiences ; Child ; DNA Methylation ; Female ; Humans ; Male ; Sexual Behavior