BACKGROUND:Studies have shown that the physical development potential is often associates with certain combinations of hand print features.
OBJECTIVE:To analyze the body shape and structure characteristics of national women’s handbal team athletes.
METHODS:Fifty national women’s handbal team athletes were col ected from Shanghai, Beijing, Tianjin and Anhui provinces and PLA. The body shapes of the athletes were measured by the Research Institute of National Sports Council, and the hand prints were col ected. The common factors of body shape and structure characteristics were analyzed with factor analysis method, including height, weight, forearm length, wrist circumference, hand length, hand width and index finger length and large-handedness index.
RESULTS AND CONCLUSION:The body shape and structure characteristics of national women’s handbal team athletes could be divided into four types:long trunk lean type indicator, hand skeleton and muscle fiber development level index, flexible quality indicators as wel as the alertness and mental level indicators. The long trunk lean type indicator was the main factor to affect body shape and structure characteristics of national women’s handbal team athletes.

BACKGROUND: Pdor findings have demonstrated that body mass of Minority students aged 18-22 years old in Guangxi Zhuang Autonomous Region of China is slightly lower than concurrent nationwide level.OBJECTIVE: To further investigate the information with respect to healthy status including somatotype and body mass of 2 645 Minority students in Guangxi Zhuang Autonomous Region of China and to search for correlated influencing factors.DESIGN, TIME AND SETTING: A follow-up investigation was performed in the Guangxi University for Nationalities between December 2004 and December 2007.PARTICIPANTS: A total of 2 645 college students consisting of 1 337 males and 1 308 females who received health examination between years 2003 and 2005 in Guangxi University for Nationalities were recruited into this study. They were aged 18-20 years and were from 15 nationalities.METHODS: According to Health Standard of Students' Constitution (Tdal Program) formulated by the Ministry of Education of China and General Administration of Sport of China, examination indices included somatotype, skills, and physical constitution.Physical functions and body mass index (BMI) of 2 645 Minority students were followed up. MAIN OUTCOME MEASURES: Body height, body mass, vital capacity, bending forward while in a sitting position, standing long jump, and BMI.RESULTS: ①The mean increase rate of body height and body mass across 3 years for male college students in Grade 2003 in Guangxi University for Nationalities was 2.45% higher than the concurrent nationwide mean level, and somatotype development was in the peak phase; in addition, female students presented with a little thin body shape, demonstrating slightly poor somatotype development. ②When newly recruited into university, the vital capacity of male and female students was very poor,which was greatly lower than the concurrent nationwide level. Three years later, the vital capacity was increased by 11.55% and 27.72% for male and female students, respectively, both of which was higher than corresponding concurrent nationwide level.③ The function of bending forward while in a sitting position of male and female students was higher than the corresponding concurrent nationwide level. The function of bending forward while in a sitting position of male students tended to increase year by year, while the concurrent nationwide level of male students was gradually decreased, and the concurrent nationwide level of rural female students was gradually increased.④The function of standing long jump was greatly improved. The mean increase rate across 3 years was 18.15%, which was 2.61% higher than the concurrent nationwide level. The general standing long jump function of female students was poorer compared to the corresponding concurrent nationwide level. ⑤The general BMI of male and female Minority students was a little lower than the corresponding concurrent nationwide level (P< 0.01).CONCLUSION: All recruited 2 645 Minority students were in the peak of development, and the function of vital capacity was poorer compared to the concurrent nationwide level. BMI distribution was different in female and male students, and there were more female students presenting with lower body mass than male students, demonstrating a general poor nutritional state of college students.

Objective To investigate the feasibility of macrophages as cell carriers to deliver floate modified oxygen loaded ultrasound contrast agent . Methods The phagocytic activity of macrophages was analyzed by ink phagocytose test , and the expression of folate recepters ( FRs ) on macrophages cell membrane surface was tested by immunofluofluorescence assay . Oxygen/paclitaxel loaded lipid microbubbles( OPLMB) and folate‐targeted OPLMB ( TOPLMB) were synthesized by mechanical shock method and incubated with macrophages in vitro . According to different treatment conditions ,the cells were divided into three groups:group A ( OPLMB) ,group B ( free folic acid + TOPLMB) and group C ( TOPLMB) , the fluorescence intensity of the cells were observed under fluorescence microscope ,and the phagocytic percentage and the phagocytic index of macrophages uptake OPLMB and TOPLMB were observed by bright field microscope . Results The phagocytic percentage of macrophages phagocytose ink was (99 .3 ± 1 .0)% ,FRs was highly expressed on macrophages cultured in vitro . After incubation for 30 minutes ,the fluorescence intensity of group C was significantly higher than those of A and B ,the phagocytic percentage in three groups were (19 .5 ± 0 .2)% ,(21 .0 ± 0 .2)% and (81 .2 ± 10 .0)% respetively . The phagocytic percentage of group C were significantly higher than those in group A and group B ( P <0 .05) . Conclusions Macrophages cultured in vitro possess highly phagocytic activity and these cells highly express FRs ,and can be used as cell carriers to deliver floate modified oxygen loaded multimodality ultrasound contrast agent .

Objective: To provide reference for the overall education of Maonan primary and secondary school students by understanding the physical status. Methods: Physical fitness test were administered in 1 107 boys and 1 236 girls in 2014,as well as 1 130 boys and 1 308 girls in 2019 of Maonan Nationality aged from 7 to 18 years old. Results: Compared with 2014, the height of boys and girls aged 7-18 increased by 1.5 cm and 1.1 cm on average in 2019, and there were differences in boys height among 6 age groups ( P <0.05) and girls height among 5 age groups( P <0.05). The increase of vital capacity was 126 mL, and there were differences in the vital capacity of boys in 10 ages ( P <0.05) and girls in 11 age groups( P <0.05). The results of 50 m running are improved by 0.2 s and 0.4 s on average. There are differences in 7 ages of boys 50 m running results ( P <0.05), and there are differences in 11 age groups of girls 50 m running results( P <0.05). The average 1 000 m score of male students increased by 3.7 s, and there were differences among 4 age groups( P <0.05). The average 800 m score of female students increased by 12.8 s, and there were differences among 4 age groups( P <0.05). Conclusion Maonan primary and secondary school students body shape, physical function and sports quality are on the rise as a whole, and fluctuate in some age groups.

OBJECTIVETo study the pharmacokinetics and bioequivalence of asparaginase loaded in hyaluronic acid-graft-poly(ethylene glycol)/ sulfobutylether-β-cyclodextrin nanocapsules (AHSP) in SD rats.

METHODSThe morphology of AHSP was observed under the transmission electron microscope and the particle size and zeta potential were measured. AHSP and free asparaginase were intravenously injected in rats, and the plasma asparaginase activity was measured at different time points after the injections. The pharmacokinetic parameters were calculated using the software DAS 2.1.1 to assess the bioequivalence of AHSP and free asparaginase.

RESULTSAHSP had an average particle size of 413.80∓10.97 nm with a zeta potential of -20.37∓2.38 mV. The AUC(0-48 h) of AHSP and free asparaginase was 137.34∓1.82 U/mL and 46.38 ∓1.98 U/mL, and their AUC(0-∞) was 164.66∓6.88 U/mL and 51.44∓3.01 U/mL with half-lives of 4.62∓0.60 h and 1.86∓0.38 h, respectively. Compared with free AN, AHSP exhibited increased AUC(0-48 h), AUC(0-∞), and half-life by 2.24, 2.55 and 2.32 folds, respectively. The 90% confidential intervals of AUC(0-48 h), AUC(0-∞) and Cmax of the tested formulation were 75.0%-76.5%, 74.3%-76.1%, and 95.1%-96.7%, respectively.

CONCLUSIONAHSP can improve the bioavailability and extend the biological half-life of asparaginase in rats, and AHSP and free asparaginase are not bioequivalent.

Animals ; Area Under Curve ; Asparaginase ; pharmacokinetics ; Biological Availability ; Half-Life ; Injections, Intravenous ; Nanocapsules ; Rats ; Rats, Sprague-Dawley ; Therapeutic Equivalency

OBJECTIVETo observe the clinical effect of low-intensity ultrasound in promoting uterine involution following cesarean section.

METHODSA total of 122 women undergoing cesarean section were randomly selected and divided into low-intensity ultrasound treatment group (67 cases) and control group (55 cases). The women in the treatment group received daily low-intensity ultrasound treatment for 30 min 24 h after the delivery for 3 consecutive days, and the control group had no particular treatments. The descent of the uterine fundus and cessation of lochia was observed in the two groups.

RESULTSThe treatment group showed obviously greater descent of the uterine fundus with a higher rate of cessation of vaginal bleeding than the control group at 30 days postpartum. The ratio of incomplete uterine involution was significantly lower in the treatment group than in the control group.

CONCLUSIONLow-intensity ultrasound is effective in promoting uterine contraction and uterine involution following cesarean section.

Adult ; Cesarean Section ; rehabilitation ; Female ; Humans ; Postpartum Period ; Pregnancy ; Ultrasonic Therapy ; methods ; Ultrasonography ; Uterus ; diagnostic imaging ; Young Adult