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Objective:To investigate the normal range of exhaled nitric oxide in healthy children aged 6-18 in Jinan.Methods:The healthy school children aged 6-18 in Jinan from October 11 to 26, 2017 were selected for questionnaire survey, physical examination and exhaled nitric oxide test.The levels of mouth exhaled nitric oxide at the flow rate of 50 mL/s (FeNO 50) and mouth exhaled nitric oxide at the flow rate of 200 mL/s(FeNO 200), alveolar nitric oxide (CaNO), and nasal exhaled nitric oxide at the flow rate of 10 mL/s(FnNO 10) were measured by the electroche-mical method.The distributions of FeNO 50, FeNO 200, CaNO and FnNO 10 were analyzed, and their correlations with gender, age, height and body mass index (BMI) were discussed by the multiple linear regression model. Results:A total of 772 healthy children were enrolled in this study, including 364 males and 408 females, with a median age of 12.1(11.8-12.3) years old, a median height of 154.8(153.6-156.0) cm, and a median BMI of 20.3 (20.0-20.6) kg/m 2. The measured values of FeNO 50, FeNO 200, CaNO and FnNO 10 fluctuated in the range of 3.0-168.0 ppb, 2.0-44.0 ppb, 0.5-44.2 ppb and 0-1 253.0 ppb, respectively.FeNO 50, FeNO 200 and CaNO values showed skewed a distribution, and their 95% upper limits were 35.0 ppb, 13.3 ppb and 8.5 ppb, respectively.The geometric mean(95% CI) of FeNO 50 in males (95% CI)[14.6 (13.7-15.5) ppb] was significantly higher than that in females [13.3(12.7-14.0) ppb], and the difference was statistically significant ( Z=1.470, P=0.027). The multiple linear regression results suggested that, FeNO 50 was positively correlated with age and height ( β=0.023, 0.007, respectively, all P<0.05), and negatively correlated with BMI ( β=-0.016, P<0.05). The geometric mean (95% CI) of FeNO 200in males[7.1 (6.8-7.4) ppb] was significantly higher than that in females[6.4 (6.1-6.6) ppb], and the difference was statistically significant( Z=1.747, P=0.004). The multiple linear regression results suggested that, FeNO 200 was positively correlated with height ( β=0.005) and negatively correlated with gender(female β=-1.126) (all P<0.05). There was no significant difference between male and female in CaNO, which had no correlation with gender, age, height and BMI (all P>0.05). FnNO 10 showed a normal distribution, with a mean value of 456.2 ppb, 95% CI of 29.3-863.4 ppb.The geometric mean (95% CI) of FnNO 10 in males [408.7 (377.1-443.0) ppb] was significantly higher than that in females [368.8 (339.0-401.3) ppb], and the difference was statistically significant ( Z=1.722, P=0.005). The multiple linear regression results indicated that FnNO 10 was related to gender ( β=-36.098, P<0.05), and not correlated with age, height and BMI (all P>0.05). Conclusions:The normal ranges of FeNO 50, FeNO 200, CaNO and FnNO 10 in healthy children aged 6-18 in Jinan are 3.0-35.0 ppb, 2.0-13.3 ppb, 0.5~8.5 ppb and 29.3-863.4 ppb, respectively.FeNO 50 is correlated with age, height and BMI.FeNO 200 is correlated with gender and height.CaNO and FnNO 10 are not correlated with age, height or BMI.
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Tumor suppressor genes breast cancer gene 1/2 ( BRCA1/2) play key roles in DNA damage repair pathways and are essential for maintaining genome integrity. The earliest studies found that BRCA1/2 are the main pathogenic factors of hereditary breast/ovari-an cancer syndrome, and the risk of breast cancer and ovarian cancer is greatly increased in BRCA1/2 mutation carriers. Recent studies have demonstrated that BRCA1/2 mutations also increased the risk of developing colon cancer, pancreatic cancer, skin cancer, and male prostate cancer. BRCA1/2 mutation patients have common molecular pathological basis, which may be independent of pathologi-cal tissue diagnosis in the future. Furthermore, it can serve as an important basis for clinical drug therapy, including chemotherapy drugs represented by platinum, PARP inhibitors, PD-1 antibodies, ALDH2 inhibitors, and mTOR inhibitors.
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Objective@#To investigate the distribution characteristics of thyroid nodules and thyroid cancer in physical examination population in Tianjin, and report the outcome of ultrasonography in detection of thyroid nodules.@*Methods@#Enrolled all of physical examination population in our hospital from Jan 1, 2014 to Dec 31, 2014 as our study subjects then the thyroid gland lesions were screened by ultrasound diagnostic technique. The risk assessment of benign and malignant thyroid nodules was assessed by ultrasonography and thyroid imaging reporting and data system (TI-RADS), and the individuals were followed up for 1 year.@*Results@#Among the 5 196 cases, the patients with thyroid nodules was 2 068 cases (39.80%). The thyroid nodules was 35.04% in male and 44.78% in female subjects, lower in females than in male cases (P<0.001). 18 cases of thyroid cancer patients were detected (0.35%). The thyroid cancer rate were 0.34% and 0.36% in male and female respectively (P>0.05). Thyroid nodules increased with age, but the thyroid cancer patients were mainly concentrated in the 30 to 39 years old group and 50 to 59 years old group. All of the thyroid cancer patients underwent surgical treatment, better differentiation thyroid papillary carcinoma (17 cases) in major, most were early stage cancer and micro-cancer, possessing relatively low risk of recurrence. The sensitivity, specificity and accuracy of ultrasonography and TI-RADS diagnosis of thyroid cancer was 72.22%, 98.94% and 98.85%.@*Conclusions@#The detection rate of thyroid nodules in our population is close to 40%, and there are differences between sexes and ages. Ultrasonography and TI-RADS association is an efficient method to detect the nodules in thyroid.
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Objective To investigate the distribution of Helicobacter pylori (Hp) infections among general population in Tianjin. Methods Individuals (n=11 096) who visited our hospital for medical examination and H. Pylori infection screen were included in the research objects. Rapid urease method was utilized to rapidly detect H. pylori infection among the popultion. Individuals were grouped based on their gender, age and occupations, and then were analyzed. Results H. pylori-positive rate was 30.52%(3 386/11 096) in 11 096 individuals, in which there were 34.77%(1 784/5 131) male and 26.86%(1 602/5 965) female respectively. Individuals were divided into 5 groups according to their ages:19 to 29 years old group, 30 to 39 years old group, 40 to 49 years old group, 50 to 59 years old group, 60 to 69 years old group and 70 to 92 years old group. The positive rates of H. pylori increased with age:19.50%( 379/1 944 ) in 19-29 years old group, 25.82%(650/2 517 ) in 30-39 years old group, 31.59%( 908/2 874 ) in 40-49 years old group, 37.48%(915/2 441 ) in 50-59 years old group, 41.09%( 353/859 ) in 60-69 years old group and 39.18%(181/462) in 70-92 years old group. The differences in positive rates between different age groups were all of statistically significant (P<0.05). Individuals were also divided into seven groups according to their occupations: medical worker group, worker group, teacher group, engineer group, clerk group, civil worker group and other career group. The positive rates of H. pylori infection were 25.42%(586/2 305), 29.35%(1 062/3 618), 30.61%(360/1 176), 32.49%(116/357), 33.44%(205/613), 34.52%(455/1 318)and 35.23%(602/1 709) respectively. The positive rate was 25.42% (586/2 305) medical workers, which was lower than that of other occupation groups with significant difference (P<0.002). Conclusion Good management of H. pylori diagnosis and treatment in mid-dle age and elderly together with popularizing knowledge of H.pylori prevention can effectively reduce H.pylori incidence.
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Objective:This study aims to select the more suitable testing method for early screening of uterine cervical cancer to protect susceptible populations. Application value was compared between the two methods of high-risk HPV detection in early screening of uterine cervical cancer. Methods:The two methods, namely, fluorescence quantitation polymerase chain reaction(PCR) and HC2-HPV-DNA, were used to detect the infection status of 13 high-risk HPV types during women's health examination. The examined women were divided into four groups according to age (23 to 29 years old, 30 to 39 years old, 40 to 49 years old, and 50 to 58 years old). Statistical methods were applied to analyze the results. Results:The detected positive rates by fluorescence quantitation PCR and HC2-HPV-DNA were 15.93%(140/879) and 11.83%(104/879), respectively, among the 879 examined women. The common positive and negative rates were 9.56%(84/879) and 81.80%(719/879), respectively. The results of the two methods showed that the infection positive rate was obviously higher in the 40 to 49 year old and 50 to 58 year old groups. Statistical difference was observed between fluorescence quantitation PCR and HC2-HPV-DNA in detecting high-risk HPV types (P40 years old who are at high risk of HPV, to prevent uterine cervical cancer efficiently.
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Objective To study the relationship between the clinic-pathological features and pain symptoms in patients with endometriotic cyst(EM).Methods The medical data of symptoms,laparoscopy and pathology examination in 416 patients with endometriosis were studied retrospectively.All cases were divided into two groups on the existence of ovarian endometrioma,including 338 patients in cyst group and 78 cases in non-cyst group.The relationship between clinical symptoms and location and type of endometrioma was studied.Results(1)Serum CA125 level:the level of CA125 were(61 ± 39)kU/L in cyst group(28 ± 24)kU/L in non-cyst group,which reached statistical difference(P ＜ 0.01).(2)Pathological features:among 338 cases,34.0％ of cyst were on left side(115/338),26.3％ were right side(89/338),and 39.6％ were on both side(134/338).And 95.8％(324/338)of cases were combined with the other type of endometriosis,which were 48.5％(164/338)with peritoneal endometriosis,47.3％(160/338)with deep infiltrating endometriosis(DIE).In cystic patients,the incidences of endometriosis lesion were 13.9％(47/338)on the uterine surface,38.5％(130/338)on obstruction of cul-de sac,40.5％ (137/338)on utero-sacral ligament of DIE,which were significantly higher than 5.1％,(4/78),9.0％ (7/78)and 28.2％(22/78)in noncyst group.(3)Pain symptom:the incidence and degree of dysmenorrhea and dyschezia had no statistical difference between two groups(P ＞ 0.05),and the incidence of chronic pelvic pain(CPP)of 24.6％(83/338)and dyspareunia of 29.9％(101/338)in the cyst group were significantly lower than 35.9％(28/78)and 44.9％(35/78)in non-cyst group(P ＜ 0.05).The incidence of dysmenorrheal was 85.1％(114/134)in cases with bilateral cyst,which was higher than 74.0％(151/204)in cases with single cyst.The incidence of dysmenorrheal and dyschezia in moderatesevere adhesion was 89.0％(138/155)and 18.7％(29/155),which was significantly higher than 68.8％ (126/183)and 8.2％(15/183)in mild adhesion.In the patients cyst existed with DIE,the risk of dysmenorrheal,CPP,dyspareunia,and dyschezia were obviously raised(OR respectively was 5.17,3.01,3.05,2.75).Conclusions The endometriotic cyst often co-exists with other type of endometriotic lesions.Ovarian endometrioma was associated with lesion localized on uterine surface,cul-de-sac,sacrum ligament.The risk of all the pain symptoms would be raised when the endometriotic cyst co-exit with the DIE lesions.So the treatment for DIE lesions was as same important as the endometriotic lesions in order to relieve pain symptoms and delay the relapse.
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ObjectivesTo compare operative characteristics, postoperative residue, recurrence, and pregnancy outcome between laparoscopic myomectomy (LM) and transabdominal myomectomy (TAM),and investigate the favourable surgical approach in women with uterine myomas. MethodsFrom Jan 2008 to Dec 2008, 313 women undergoing LM and 148 women undergoing TAM were studied retrospectively in Peking Union Medical College Hospital. The patients' general information, including the largest diameter,mean numbers and weights of excised myomas, peri-operative characteristics (operating time, blood loss,and hemoglobin decrease), and residue, recurrence of myoma, and pregnancy outcome were compared and analyzed. Results The largest diameter, mean numbers and mean weight of myomas removed were larger in TAM group [( 7.6 ± 3.0) cm, (5.6 ± 5.5 ), ( 308 ± 364) g, respectively]than those in LM group [(6.8±2.0) cm, (2.4 ±2.1), (140 ± 109) g, respectively; P＜0.01]. While the extension of operating time [(89±32) versus (74 ±35) min], increased blood loss [(239 ±251 ) versus ( 149 ±252) ml]and hemoglobin decrease [(22 ± 14) versus ( 15 ± 12) g/L], and longer hospital stay [(6. 4 ± 1. 6)versus (4. 4 ± 1.3) d]were observed in TAM group when compared with those in LM group ( P ＜0. 01 ).However, the residue rate of LM and TAM was 2. 6％ versus 1.4％ respectively ( P = 0. 5130 ) ; the recurrence rate of LM and TAM was 11.1％ versus 12. 3％ (P ＞ 0. 05 ) ; the pregnancy rate of LM and TAM was 49. 2％ versus 9/13 separately, the difference was not statistically significant ( P = 0. 2330 ). The number of myomas removed was the significant risk factors associated with recurrence ( OR = 2. 805, 95％CI: 1. 192 -6. 601, P = 0. 0180). No uterine rapture occurred during pregnancy. ConclusionsBoth LM and TAM are effective surgical approaches for the patients with leiomyoma who desire to pregnancy, or to retain the integrity of their uteruses. Most of uterine myoma could be treated through laparoscopy. The residue rate of LM is higher than that of TAM. However, the short term recurrence rates of LM and TAM are similar. Multiple myomas is the risk factor associated with recurrence after myomectomy. The pregnancy rates are comparable between LM and TAM groups.