1.Clinical efficacy of hair removal by using Lightsheer Duet diode laser
Lingyun YANG ; Kai XU ; Shengsheng KONG ; Hongbo YAN
Chinese Journal of Medical Aesthetics and Cosmetology 2013;19(4):271-274
Objective To evaluate the efficiency and safety of hair removal in different areas with Lightsheer Duet diode laser and to compare clinical effect and safety in axillae hair removal between the two models,high-speed and standard model.Methods Lightsheer Duet diode laser was used to remove hairs from different areas in 200 cases,for 4-8 weeks treatment 1 time,4 times for 1course.The curative effect and adverse reaction were observed after the treatment.Thirty axillae hair removal subjects were chosen randamly and received treatments using the different models,high-speed hand piece on one side and the standard hand piece on the other side.Hair removal efficiency and the immediate pain were compared and evulated on each subject.Results The hair was significantly reduced after 4 times treatments in 200 cases.The total effective rate was 95.54 % and positively related with the treatment times.Pigmentation was found in 3 cases,but it disappeared after 1-3 months.The total effective rate was 100 % after the 3 times treatments in axillae hair removal subjects both using the high-speed model or the standard model in 30 cases.There was no statistical difference between the two models except less pain in the high-speed model.Conclusions Lightsheer Duet diode laser is a safe and efficient method in hair removal.The high-speed model has more advantage on speed and causing pain.
2.Placental site trophoblastic tumor occurring in uterine cervix: report of a case.
Yan-mei HE ; Xian-ying YAO ; Kai-xuan YANG
Chinese Journal of Pathology 2009;38(9):631-632
Adult
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Alkaline Phosphatase
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metabolism
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Carcinoma, Squamous Cell
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metabolism
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pathology
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Cervix Uteri
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metabolism
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pathology
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surgery
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Choriocarcinoma
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metabolism
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pathology
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Chorionic Gonadotropin
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metabolism
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Diagnosis, Differential
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Female
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GPI-Linked Proteins
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metabolism
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Humans
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Hysterectomy
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Placental Lactogen
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metabolism
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Pregnancy
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Trophoblastic Tumor, Placental Site
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metabolism
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pathology
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surgery
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Uterine Cervical Neoplasms
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metabolism
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pathology
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surgery
4.Reconstuctive strategy of the defect of anterior rectus fascia and rectus abdominus muscle
Guangxue LI ; Yan LIU ; Cai WANG ; Huiran ZANG ; Kai YANG
Chinese Journal of Medical Aesthetics and Cosmetology 2021;27(1):42-45
Objective:To discuss the reconstuctive strategy of the defect of anterior rectus fascia and rectus abdominus muscle in the clinical practice.Methods:Between November 2009 and Janurary 2020, clinical data of 24 female patients that underwent 29 anterior rectus fascia and rectus abdominus muscle reconstructions of defect were reviewed retrospectively. The median age was 42.5 years (range, 35-60 years), including 20 breast reconstructions, 2 pelvic reconstructions, 1 thoracic defect after tumor resection and 1 abdominal defect after tumor resection. According to the location and size of the anterior rectus fascia and rectus abdominus muscle defect, three reconstructive methods were applied: 6 direct clousres were applied if the width of defect was less than half of the anterior rectus fascia, 21 polypropylene mesh onlay reconstructions were applied for which the width of defect was or more than half of the anterior rectus fascia, and 2 direct suture closure were applied for the simple rectus abdominus muscle defect.Results:All the patients healed eventfully without abdominal wound complications, such as infection, hematoma, dehiscence. The patients were followed up for a median period of 30 months (range, 5-126 months). 1 patient died of breast cancer recurrence and matastasis at 36 months postoperatively. No patient developed a mesh infection or required mesh removal secondary to infection or foreign body reaction. There was no abdominal wall hernia, 1 patient developed abdominal bulge without further treatment because of no abdominal wall discomfort.Conclusions:The key of successful operation is different reconstructive methods applied to reconstruct the integrity and stability of abdominal wall, based on the location and size of the anterior rectus fascia and rectus abdominus muscle defect.
5.Reversal of Multidrug Resistance by IFN-? in KBv200 Cell Lines
Yan LIANG ; Xiyin WEI ; Kai LI ; Yi YANG ; Ruifang NIU
Chinese Journal of Cancer Biotherapy 1995;0(03):-
Objective: To explore the effects of various concentrations IFN-? on human oral epidermic cancer cell line KB and its multidrug resistant counterpart KBv200.Methods: The toxicity of IFN-? and/or VCR was assayed by MTT method; intracellular rhodamin123 concentration and p-glycoprotein expression were measured by flow cytometry; mdr-1 mRNA was assayed by RT-PCR. Results: High-dose IFN-?(10 000 IU/ml) had significant antiproliferative effects on KB/KBv200 cell lines. Low-dose IFN-? did not have any significant effect on growth of KB/KBv200 cells, but did increase the cytotoxic effect of VCR and the accumulation of Rhodamine123 in KBv200 cell line and had no effect on parent VCR-sensitive KB cell line. IFN-? down-regulated expression of P-gp and mdr-1mRNA . Conclusions: IFN-? has significant effect on the reversal of multidrug resistance of KBv200 cell line via a mechanism of P-gp and mdr1 mRNA down-regulation.
6.Metabolism of polyunsaturated fatty acid and its relationship with △6 desaturase activity in colorectal cancer
Kai YANG ; Wen TIAN ; Jin DONG ; Yan DONG ; Hong LI
Cancer Research and Clinic 2013;(5):293-295,299
Objective To study metabolism of polyunsantured fatty acid (PUFA) and to investigate the relationship between different PUFA compositions and △6 desaturase (D6D) activity in colorectal carcinoma (CRC).Methods Fresh frozen malignant CRC tissues were obtained from 61 patients and blood samples were detected in 38 patients.The PUFA composition in these samples was determined by gas-liquid chromatography on a capillary column.The fatty acid product-to-precursor ratios in blood and tissue as estimates of desaturase activity (D6D activity index),and its relationship with the ratios between different PUFA compositions were investigated.Results Metabolism of ω-6 PUFA dominated in PUFA metabolism path.The ratio of ω-6/ω-3 PUFA was 4.89 in blood samples and 10.15 in tissues.The ratio of LA/ALA was 101.92 in blood samples and 86.16 in tissues.The ratio of ω-6/ω-3 LC-PUFA was 2.86 in blood samples and 4.51 in tissues.The D6D activity index in ω-6 PUFA metabolic processes both in tissues (t =1 1.609,P =0.00) and blood samples (t =-9.151,P =0.00) were higher than that in ω-3 PUFA.Conclusion In colorectal carcinoma,the ω-6 PUFA metabolic not only plays an important role in the metabolism of PUFA,but also is more active than the ω-3 PUFA metabolic,and in some way links to the development of tumorigenesis in CRC.
7.Meta-analysis of risk factors of thyroid cancer: base on case-control study
Fang CHEN ; Kai WU ; Mingxing XU ; Yan YANG
Chinese Journal of Endemiology 2017;36(4):250-256
Objective Evaluating the main risk factors of thyroid cancer systematicaly,to provide reference for the further development of thyroid cancer prevention strategies.Methods Such databases as PubMed,Cochrane Library,CBM,CNKI,VIP and WanFang were searched from the date of their establishment to June 10 2016 to collect the case-control studies on thyroid cancer.After study selection,assessment and data extraction was conducted by two reviewers independently,meta-analysis was performed by using the RevMan 5.1 software.Results Nineteen studies involving 4 813 thyroid cancer patients and 6 068 comparions were selected.The results of metaanalysis showed that:the risk factors of thyroid cancer mainly included history of benign thyroid disease [odds ratio (OR) =7.31,95% confidence interval (95%CI,4.37,12.23)],family history of thyroid cancer [OR =5.13,95%CI (3.20,8.23)],high iodine diet [(marine animal food,OR =4.15,95%CI (2.47,6.99)],CT inspection history [OR =3.99,95%CI (2.10,7.60)],Negative emotions [sulking,OR =3.31,95%CI (2.23,4.91)],BMI greater than 25 [OR =2.62,95%CI (1.73,3.97)],high pressure and anxious [OR =2.60,95%CI (1.61,4.21)],getting along with people not harmoniously [OR =2.46,95%CI (1.59,3.81)],the number of pregnancies of women more than three times [OR =2.03,95%CI (1.50,2.76)],age of menarche less than 13,14 years old [OR =1.59,95%CI (1.06,2.37)].Conclusions Thyroid benign disease history,family history of thyroid cancer,high iodine diet,CT examination,BMI greater than 25,bad mood,social interaction,number of pregnancies and other factors are the independent risk factors for thyroid cancer.Corresponding prevention and control measures should be taken according to these risk factors.
8.Epidemiological analysis of overseas imported malaria in Wuhan City
Kai WU ; Yan YANG ; Shuimao ZHOU ; Mingxing XU
Chinese Journal of Schistosomiasis Control 2015;(1):70-72
Objective To analyze the epidemiologic feature of overseas imported malaria in order to provide the evidence for improving the surveillance and control of malaria in Wuhan City. Methods The epidemiological investigation data of overseas imported malaria cases were collected and analyzed with an epidemiological method including plasmodium species epidemic fo?cus distribution domestic distribution population characteristics attack?diagnosis interval clinical grading etc. in Wuhan City from 2008 to 2013. Results A total of 240 overseas imported malaria cases were reported including 180 cases from Afri?can countries and the proportion of Plasmodium falciparum infections was 82.22% and 60 cases from Southeast Asian coun?tries and the proportion of Plasmodium vivax infections was 76.67% and the proportions of the parasite species were significant?ly different between the two regions χ2=105.53 P 0.001 . The male and young adults were dominant. there were no statisti?cal significance between clinical grading and attack?diagnosis interval Z=-0.99 P = 0.32 vocational background χ2=10.61 P=0.10 then clinical symptoms aggravated the situation was occurred more easily among the first attack cases χ2=7.66 P 0.05 and the falciparum malaria cases χ2=24.27 P 0.001 . Conclusions The overseas imported malaria cases are increasing rapidly with years and the malignant malaria cases were more than other malaria cases in Wuhan City. Therefore the surveillance and management of the returnees from malaria endemic areas should be strengthened continually.
9.A study on thyroid volume correction method for children aged 8 - 10 years old in Wuhan
Fang CHEN ; Kai WU ; Yan YANG ; Mingxing XU
Chinese Journal of Endemiology 2021;40(5):404-409
Objective:To understand the applicability of different thyroid volume correction methods for school-age children in Wuhan, and to explore the appropriate thyroid volume correction methods for school-age children in Wuhan.Methods:From May to August 2019, Hongshan, Hanyang, Hannan, Jiangxia and Dongxihu districts of Wuhan were divided into five sampling areas according to five directions: east, west, south, north and middle. One primary school was selected from each area, and 40 non-boarding students aged 8 - 10 years old (gender balanced) were selected from each primary school as survey subjects. Random urine sample and household edible salt sample were collected to detect urinary iodine and salt iodine contents, and the height, weight and thyroid volume of the children were measured. At the same time, the thyroid volume was corrected by height corrected volume index 1 (HVI1), weight and height corrected volume index (WHVI), body mass index corrected volume (BMIV), body surface area corrected volume (BSAV) and height corrected volume index 2 (HVI2).Results:A total of 1 000 children aged 8- 10 years old were investigated, including 499 boys and 501 girls; among them, there were 269, 321 and 410 children aged 8, 9 and 10 years old, respectively. The median urinary iodine was 247.50 μg/L; the median salt iodine was 23.20 mg/kg; the height, weight and thyroid volume were 140.00 (133.00, 146.00) cm, 31.00 (27.00, 37.00) kg and 2.56 (2.13, 3.21) ml, respectively. A total of 30 children with goiter were detected, and the goiter rate was 3% (30/1 000). The thyroid volumes of boys and girls were 2.57 (2.16, 3.28) and 2.56 (2.10, 3.16) ml, respectively, and the difference was not statistically significant ( U = - 0.981, P > 0.05). The thyroid volumes of children aged 8, 9 and 10 years old were 2.31 (1.98, 2.81), 2.68 (2.13, 3.30) and 2.74 (2.28, 3.35) ml, respectively, and the differences were statistically significant ( H = 47.585, P < 0.01). Spearman correlation analysis showed that the original thyroid volume was positively correlated with height and weight in children aged 8, 9 and 10 years old ( P < 0.01). After HVI1 correction, no correlation was found between thyroid volume and height in children aged 8 years old ( P > 0.05), but thyroid volume was positively correlated with weight ( P < 0.01); thyroid volume was positively correlated with height and weight in children aged 9 and 10 years old ( P < 0.01). After WHVI correction, the thyroid volumes of children aged 8, 9, and 10 years old were negatively correlated with height and weight ( P < 0.01). After BMIV correction, the thyroid volume was positively correlated with height in children aged 8, 9, and 10 years old ( P < 0.01); thyroid volume was negatively correlated with weight in children aged 10 years old ( P < 0.05). After BSAV correction, thyroid volume was positively correlated with weight in children aged 9 years old ( P < 0.05). After HVI2 correction, thyroid volume was positively correlated with weight in children aged 9 years old ( P < 0.01). The thyroid volume obtained by the 5 correction methods were all smaller than the original thyroid volume, and the thyroid volume after BSAV correction was the closest to the original thyroid volume, with a difference of 0.87% - 13.87%. Conclusions:The thyroid volume of school-age children in Wuhan is affected by age, height, and weight, judgment of goiter should be corrected for these factors. BSAV is relatively independent and stable, it can eliminate the effect of height and weight on thyroid volume. It is initially considered that BSAV is suitable for the correction of thyroid volume in school-age children in Wuhan.
10.Analysis of false-positive hyoid fractures: 12 forensic identification cases.
Yu-lei YANG ; Kai-jun MA ; Jian-jun YAN
Journal of Forensic Medicine 2014;30(4):270-272
OBJECTIVE:
To study the causes of false-positive hyoid fractures and forensic identification.
METHODS:
Twelve cases of false-positive hyoid fractures were collected and analyzed.
RESULTS:
Improper dissection technique (4 cases) and congenital separation (8 cases) were the main reasons for false-positive hyoid fractures.
CONCLUSION
True fractures can be differentiated from false-positive hyoid fractures. False-positive hyoid fracture caused by improper dissection technique can be identified through examination of peripheral muscle, soft tissue hemorrhage, and the characteristics of fracture end.
Autopsy
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Cell Differentiation
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Diagnostic Errors
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Fractures, Bone/diagnosis*
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Humans
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Hyoid Bone/injuries*
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Muscles