1.Identification of two novel mutations of KEL alleles in Chinese population
Yuxian ZHANG ; Ying YANG ; Ziyan ZHU
Chinese Journal of Blood Transfusion 1988;0(01):-
A mutation of intron 7, the point mutation in exon 9 was synonymous. Conclusion Two novel mutations of KEL gene are identified.
2.The correlation between sarcopenia and energy intake in people of advanced age
Shanshan REN ; Guanzhen LI ; Mingfang WANG ; Lijuan WANG ; Ziyan YANG
Chinese Journal of Geriatrics 2021;40(2):212-215
Objective:To analyze influencing factors for sarcopenia in people of advanced age, in order to provide insight and evidence for the prevention and treatment of sarcopenia in people belonging to this age group.Methods:Data from 167 people of advanced age seeking care at our department from December 2014 to July 2017 were retrospectively analyzed.According to the diagnostic criteria for sarcopenia of the Asian Working Group for Sarcopenia, subjects were divided into the sarcopenia group( n=46, 27.5%)and the non-sarcopenia group( n=121). Differences in body composition, energy intake, quantities and proportions of three major nutrients were analyzed between males and females.Related influencing factors for sarcopenia were analyzed by using multiple linear regression. Results:Compared with the non-sarcopenia group, the sarcopenia group had lower body mass index, waist-hip ratio, fat mass, total energy intake and protein( P<0.05)but higher age and fat intake( P<0.05). Values for grip strength, muscle mass, index of skeletal muscle, adjusted muscle mass by body mass index, total energy intake, carbohydrates, fat and protein were lower and the percentage of body fat was higher in females than in males( P<0.05). Multiple Logistic regression analysis showed that insufficient intake of protein( β=-0.290, OR=0.748, 95% CI: 0.569-0.984, P<0.05), reduction of body fat mass( β=-2.673, OR=0.069, 95% CI: 0.010-0.488, P<0.05)and excessive visceral fat accumulation( β=0.739, OR=2.094, 95% CI: 1.219-3.597, P<0.01)were correlated with sarcopenia in people of advanced age. Conclusions:The occurrence of sarcopenia is higher in people of advanced age and is related to insufficient intake of protein, reduction of body fat mass and excessive visceral fat accumulation.Individualized nutrition evaluation and support should be carried out as early as possible for people in this age group.
3.Evaluation of muscle quality and its correlation with dietary intake in elderly with sarcopenic obesity
Shanshan REN ; Ziyan YANG ; Mingfang WANG ; Lijuan WANG
Chinese Journal of Geriatrics 2021;40(5):605-608
Objective:To investigate the muscular quality and its related influencing factors in elderly with sarcopenic obesity.Methods:The internalized 696 elderly subjects meeting inclusion and exclusion criteria were divided into four groups including the sarcopenic obesity(n=55), sarcopenia(n=8), simple obesity(n=481)and normal control(n=152)groups.The intergroup difference was retrospectively analyzed in the parameters of body composition, dietary intake of total energy and three major nutrients and their proportions.Multiple linear regression analysis was used to analyze the influencing factors related to the occurrence of sarcopenic obesity in the elderly.Results:The sarcopenic obesity group versus normal control group showed a higher level or value in age, body mass index, waist-hip ratio, fat mass, percentage of body fat, visceral fat area, fasting blood glucose, estimated glomerular filtration rate( P<0.01 or 0.05), and showed a lower level or value in grip strength, skeletal muscle, skeletal muscle index, muscle quality(grip strength/limb skeletal muscle), intake of energy, carbohydrate, fat and protein, body weight-adjusted intake of energy and protein, as well as ideal body weight-adjusted intake of energy and protein( P<0.01). The detection rate of sarcopenic obesity was 7.90%(n=55), including 7.60% in males(n=48)and 11.48% in females(n=7 cases). The detection rate of sarcopenic obesity was increased along with increasing age with 0.07%(2/287)in 60-69 years old group, 4.94%(12/243)in 70-79 years old group, and 24.70%(41/166)in ≥80 years old group( χ2=87.76, P<0.01). Taking the median point of grip strength/limb skeletal muscle volume as the cutoff point, the decrease rate of muscle quality was 12.36%(86/696)in total elderly subjects, 2.63%(4/152)in the control group, 11.64%(86/635)in the obesity group, 37.5%(3/8)in the sarcopenia group and 41.82%(23/55)in the sarcopenic obesity group, with an increasing trend of the decrease of muscle quality, which had significant differences( χ2=62.25, P<0.01). Multiple logistic regression analysis showed that aging, excessive visceral fat area, insufficient protein intake and decreased basal metabolism were the independent risk factors for sarcopenic obesity in elderly people( P<0.01 or P<0.05). Conclusions:The incidence of decrease of muscle quality is higher in the elderly with sarcopenic obesity than other elderly groups.Sarcopenic obesity is correlated with aging, insufficient intake of protein, decreased basal metabolism and excessive visceral fat accumulation.Individual evaluation and support is necessary in elderly people with sarcopenic obesity.
4.Co-effects of extremely low frequency electromagnetic field (ELF-EMF) and temper-ature on hsp22 and hsp26 expression in Drosophila melanogaster
Jing ZHANG ; Ziyan ZHANG ; Chuanjun YANG ; Peng CAI
Military Medical Sciences 2014;(5):321-326
Objective To study the combined effect of extremely low frequency electromagnetic fields ( ELF-EMF ) exposure (50 Hz and 3 mT) and high temperature exposure on hsp22 and hsp26 expression in Drosophila melanogaster. Methods Under the conditions of 50 Hz and 3 mT ELF-EMF,the male and female D.melanogaster was separately exposed for 2 h at 25℃, 27.5℃, 30℃, 32.5℃,and 35℃, respectively.The death rate, exercise capacity and the hsp22 and hsp26 expression levels of D.melanogaster were detected after exposure;or at 25℃and 35℃at 2 h, 4 h, 8 h, and 24 h, respectively.The hsp22 and hsp26 expression levels of D.melanogaster were tested after exposure .Results After exposure for 2 h at 25℃, 27.5℃, 30℃, 32.5℃, and 35℃, temperature had a significant effect (P<0.01) on the death rate, exercise capacity and the hsp22 and hsp26 expression levels of D.melanogaster, but ELF-EMF had no significant effect (P>0.05).After exposure for 2 h at 25℃, 27.5℃, 30℃, 32.5℃, and 35℃, the hsp22 and hsp26 expression levels of D.melanogaster were significantly impacted(P<0.01) by gender, temperature, ELF-EMF and exposure time, and tem-perature was the most important factor .Gender, temperature, ELF-EMF and exposure time had some interaction with the results.Conclusion ELF-EMF can influence the expression levels of hsp22 and hsp26.ELF-EMF exposure contributes to heat tolerance in D.melanogaster through accelerated expression of hsp22 and hsp26.
5.CT characteristics of extra-organic primary tumor in pelvis and the anatomic bases
Weixia CHEN ; Zhigang YANG ; Pengqiu MIN ; Ziyan HE
Chinese Journal of Radiology 1994;0(06):-
Objective To analyze the CT contrast enhanced features of the extra-organic primary tumors in pelvis and to evaluate anatomic bases of these imaging characteristics.Methods CT findings in 14 patients with pathologically proved extra-organic primary tumors in pelvis were reviewed retrospectively for tumor size,density,margins,contrast enhanced characteristics,location and relationship of the lesions with surrounding organs and tissues.Results There were benign tumors (n=3) and malignant tumors(n=11) in this study.There were 6 lesions in peritoneal cavity and 6 in retroperitoneal space of pelvis respectively,and two other masses were in both peritoneal cavity and retroperitoneal space of pelvis.CT scan revealed that there were 6 solid masses and 8 cystic-solid masses.The enhanced characteristics of lesions were homogeneous and heterogeneous in 3 and 11 patients respectively.The fatty space surrounding the lesion was invasive in 7 cases and all of them were malignant tumor.The fatty space surrounding lesion was clear in other 7 cases including 3 benign tumors and 4 malignant tumors.CT revealed calcification in 4 lesions including benign teratoma (n=2) , malignant teratoma (n=1), and carcinoid (n=1).Conclusion In the diagnosis of extra-organic primary tumors in pelvis,CT enhancement scan can reveal the anatomic location and relationships of the lesions with surrounding organs and tissues and can differentiate benign and malignant tumor to some degree.
6.The impact of pain, anxiety and depression on sleep quality in Chinese patients with neuromyelitis optica spectrum disorders
Xiaohui Miao ; Ziyan Shi ; Hongxi Chen ; Hongyu Zhou ; Rong Yang
Neurology Asia 2017;22(3):235-241
Background & Objective: Sleep quality in neuromyelitis optica spectrum disorders (NMOSD) were
investigated in two recent studies. However, factors affecting sleep quality have not been studied in
NMOSD. This study aimed to investigate the prevalence of sleep disorders in Chinese outpatient clinics
with NMOSD and its clinical correlates. Methods: We administered Chinese validated self-questionnaires
on HRQOL (MSQOL-54), sleep (PSQI), pain (SF-MPQ-2), anxiety (HARS) and depression (HDRS)
to 42 patients followed up in our outpatient department. We assessed the relationships between sleep
quality with pain, anxiety, depression, gender, age, disability, disease duration, NMO-antibody status
and explored the determinants of poor sleep quality. Results: Sixty four percent of NMOSD patients
were poor sleepers. Significant correlations were found between duration, disability, pain, anxiety,
depression and sleep quality. Disability, depression and the domain of affective descriptors of pain
were the three main predictors of poor sleep in NMOSD.
Conclusion: This study reveals that poor sleep in NMOSD is common and it decreases physical function
of quality of life. It is worthwhile considering exploring adjuvant strategies aimed at controlling pain
associated affect, and treatment of depression may help to improve sleep quality in NMOSD.
Neuromyelitis Optica
7.Minimal anchorage invasive extraction of horizontally impacted mandibular third molar: A case report
Wengying ZOU ; Qun DAI ; Yinhua DAI ; Qiong YANG ; Ziyan LIU
Journal of Practical Stomatology 2016;32(5):738-740
Horizontal impacted lower third molars are often adjacent to the inferior alveolar nerve,direct extraction may cause trauma and complications,the most serious complication is inferior alveolar nerve damage.This article reports one case of horizontal impacted lower third molar adjacent to the mandibular nerve canal,the molar was extracted by minimal anchorage pulling for 1 week and then removed smoothly.
8.Clinical evaluation of nutrition status for 100 elderly patients with type 2 diabetes
Ziyan YANG ; Buo CHENG ; Yunyu LI ; Changping LI
Chinese Journal of Geriatrics 2001;0(05):-
Objective To evaluate the nutrition status of the elderly patients with type 2 diabetes. Methods The nutrition status of 100 elderly patients〔male 52, female 48, aged 60-83 yrs, with average of (69.2?0.7)yrs〕 with type 2 diabetes was investigated by analyzing nutrient content in daily diet, body measurement and laboratory examinations. Results Compared with the ideal body weight, total calorie intake was suitable for the elderly patients〔male: (1592?216) kCal, female: (1320?172) kCal〕, fat intake 〔male:(67?12) g, female:(65?13)g〕 was higher than the standard for diabetics(P
9.Solid-phase screening of antibodies in blood and its effect on clinical blood transfusion
Qixiu YANG ; Shasha HAN ; Ying YANG ; Jiamin ZHANG ; Wei YAN ; Ziyan ZHU
Chinese Journal of Blood Transfusion 2017;30(7):748-751
Objective Detecting antibodies against RBCs,platelets,lymphocytes,and neutrophils by a solid-phase antibodies screening system.Methods mono-layer blood cell immobilized in the bottom of U-microplate respectively to prepare the solid-phase antibody screening system.Then detecting the antibodies exist or not in 2 150 random blood donor and 440transfusion patients' samples.Analyze the influence of antibodies against blood cells to the transfusion effect.Results 53RBC antibodies,22 platelet antibodies,13 lymphocyte antibodies,55 neutrophil antibodies were detected in random blood donor samples;31 RBC antibodies,38 platelet antibodies,24 lymphocyte antibodies,43 neutrophil antibodies and 115 mixed (two or more antibodies against RBC,platelets,lymphocytes or neutrophils exist at the same time) were detected in transfusion patients' samples after detection.233 suspected adverse reaction happened after transfusion,which antibodies were detected in 133 samples.Conclusion The antibodies against blood cells solid-phase screening system can applied in pre-and post-transfusion detection.The solid-phase screening method is more sensitivity than serologic tube test and flow cytometry.Existing of antibodies influence the transfusion effect.
10.Expression of transforming growth factor-β receptors in the outflow tract of mouse embryonic heart
Huixia LIU ; Yixin JING ; Jianjin GUO ; Ziyan ZHANG ; Hairong LI ; Yanping YANG ; Tao ZHANG ; Ya JING
Acta Anatomica Sinica 2009;40(6):954-957
Objective To investigate the spatiotemporal expression patterns of transforming growth factor-β(TGF-β) receptors type Ⅰ and type Ⅱ and their relationships with development of outflow tract(OFT) in mouse embryonic heart. Methods Serial sections of mouse embryos from embryonic day 9 (E9d) to embryonic day 14 (E14d) were stained using PAP immunohistochemical methods. Results Expressions of TGF-β receptors type Ⅰ (TGF-βRⅠ) and type II(TGF-βRⅡ) in the myocardial wall of OFT started at E10d, reached the reflection with splanchnic epithelium on the dorsal wall of the pericardial cavity at E11d. At E12d, expression intensity of TGF-βRⅠ and TGF-βRⅡ in myocardium increased to its highest level, and TGF-βRⅡ positive mesenchymal cells in OFT ridges could be detected. After E13d the staining intensity of TGF-βRⅠ and TGF-βRⅡ decreased rapidly,and at E14d,their expressions had fallen at the lowest.Conclusion The expressions of TGF-βRⅠ and TGF-βRⅡ in OFT are confined to the period of E10d to E14d, they may play important roles in regulating the myocardial cell proliferation, remodeling and septation of OFT, and promoting the differentiation from mesenchymal cells in the secondary heart field into smooth muscle cells in the distal end of OFT.