Humans ; Intra-Abdominal Fat/diagnostic imaging* ; Coronary Artery Disease ; Body Mass Index

The general population cohort study in Beijing-Tianjin-Hebei area is a large-scale prospective longitudinal study conducted since 2017, which covers over 114 850 diverse populations from early life to senior age. Up to December 2021, 106 031 people had completed at least one follow-up, with an overall follow-up rate of 92.3%. Considering of the characteristics of the environmental and health problems in Beijing-Tianjin-Hebei area, in this cohort study we have focused on health problems of children and adolescents' growth and development, cardiometabolic diseases and their risk factors, aging and comorbidity, health hazards caused by air pollution. The long-term follow up of the general population cohort study in Beijing-Tianjin-Hebei area will contribute to establishing unique and invaluable data and biobank resource for scientific research. This paper aims to comprehensively describe the background, significance, current status and outcomes, limitations and challenges, and future plan and development of general population cohort study in Beijing-Tianjin-Hebei area, thus to provide reference for professionals both at home and abroad to carry out related research.

Purpose To explore the application value of dynamic contrast enhanced MRI (DCE-MRI) in judging and diagnosing metastasis of lung cancer.Material and Methods Sixty-one metastatic spinal tumor patients received DCE-MRI and their images acquired after scanning were post-processed.Signal intensity-time curve,signal intensity amplification in rising period of the curve (Peak SE％),maximum ascending linear slope of the curve (Max Wash-in SE％) and descending slope of the curve (Wash-out SE％) and other semiquantitative parameters were acquired.Double chamber pharmacokinetics was adopted to analyze and obtain Ktrans,rate constant (Kep) and other quantitative parameters.CHAID method was taken to establish tree structure model to confirm optimal sorting parameter and identify optimal division.Results For the DCE-MRI scanning parameters for 61 metastatic spinal tumor patients,differences of Wash-out SE％ and Kep between lung cancer and other tumor spinal metastasis were statistically significant (P＜0.01),while differences of Peak SE％,Max Wash-in SE％ and Ktrans between the two were not statistically significant (P＞0.05).When Wash-out SE％＞-660.6％ and Max Wash-in SE％＞98.0％,original focus of about 94.7％ was possible to come from lung.When taking tree structure model set up in the study for identification,10-fold cross-validation indicated (29.5±5.8)％ error rate.Conclusion Taking DCE-MRI semi-quantitative and quantitative analysis parameters for identification and diagnosis of metastasis of lung cancer is feasible.It can provide reference evidence for source identification of spinal sarcoma and clinical treatment.

Objective To investigate clinical characteristics and risk factors in early and advanced menopausal women with coronary heart disease (CHD).Methods A total of 259 menopausal women with CHD confirmed by coronary angiography in our hospital were selected as research objects,among whom 102 cases were in menopause≤ 10 years group,and 157 cases in menopause ＞ 10 years group.The clinical characteristics and risk factors of two groups were compared.Results The menopause ≤ 10 years group had higher incidence rate of hypertension and estrogen levels(P ＜ 0.05),but there was no significant difference in HLD-C,and TC levels,and carotid intima-media thickness (IMT) reached the degree of atherosclerosis.Menopause ＞ 10 years group showed a significantly higher incidence of diabetes,but LDL-C level and estrogen levels was significantly lower (P ＜ 0.05).The coronary artery disease in the menopause≤ 10 years group mainly occurred in single lesion,while the menopause ＞ 10 years group in double or multi-vessel lesion (P ＜0.05).Multivariate analysis showed that hypertension,diabetes,triglycerides,low-density lipoprotein cholesterol were risk factors for coronary heart disease,while estradiol was a protective factor.Conclusion Hypertension,diabetes,triglycerides,and low-density lipoprotein cholesterol and decreased estrogen are risk factors for women with coronary heart disease.Conditions of vascular endothelium and atherosclerosis of early postmenopausal women are better than the advanced postmenopausal women,and estrogen alternative is favorable for the patients.

Objective To investigate clinical characteristics and risk factors in early and advanced menopausal women with coronary heart disease (CHD).Methods A total of 259 menopausal women with CHD confirmed by coronary angiography in our hospital were selected as research objects,among whom 102 cases were in menopause≤ 10 years group,and 157 cases in menopause ＞ 10 years group.The clinical characteristics and risk factors of two groups were compared.Results The menopause ≤ 10 years group had higher incidence rate of hypertension and estrogen levels(P ＜ 0.05),but there was no significant difference in HLD-C,and TC levels,and carotid intima-media thickness (IMT) reached the degree of atherosclerosis.Menopause ＞ 10 years group showed a significantly higher incidence of diabetes,but LDL-C level and estrogen levels was significantly lower (P ＜ 0.05).The coronary artery disease in the menopause≤ 10 years group mainly occurred in single lesion,while the menopause ＞ 10 years group in double or multi-vessel lesion (P ＜0.05).Multivariate analysis showed that hypertension,diabetes,triglycerides,low-density lipoprotein cholesterol were risk factors for coronary heart disease,while estradiol was a protective factor.Conclusion Hypertension,diabetes,triglycerides,and low-density lipoprotein cholesterol and decreased estrogen are risk factors for women with coronary heart disease.Conditions of vascular endothelium and atherosclerosis of early postmenopausal women are better than the advanced postmenopausal women,and estrogen alternative is favorable for the patients.

Acupuncture Points ; Acupuncture Therapy ; Fingers ; physiopathology ; Humans ; Male ; Thumb ; physiopathology ; Trigger Finger Disorder ; physiopathology ; therapy

Bio-based polyamides are environment-friendly polymers. The precursors of bio-based polyamides come from bio-based materials such as castor oil, glucose and animal oil. Bio-based polyamides precursors include bio-based amino acids, bio-based lactams, bio-based diprotic acid and bio-based diamines. In this paper, we discussed the route of the precursors of bio-based polyamides that come from bio-based materials. We discussed the properties of bio-based polyamides. Bio-based PA11and bio-based PA1010 are well-known bio-based polyamides; we discussed the origin materials of the precursors, the route of manufacturing bio-based PA11 and PA1010, and their modifications status. The variety, classification and commercial production of bio-based polyamides were described in details, as well as bio-based polyamides development in China.
Animals ; Biotechnology ; Castor Oil ; China ; Glucose ; Nylons ; chemistry ; Polymers

Professor FU Zhonghua's unique clinical experience of Fu's subcutaneous needling (FSN) for cervical spondylosis (CS) is discussed in this paper, which is analyzed from the aspects of recognition of CS pathogenesis, treatment mechanism of FSN, advantage indications of FSN for CS and examples of medical cases. Professor FU introduced the theory of myofascial trigger points (MTrP) into the field of the management of CS. The site of neck MTrP should be carefully examined, and FSN needles for single use are used to sweep the affected area or subcutaneous layer of adjacent upper limb. This method can rapidly improve ischemia and hypoxia state of the relevant muscles and prompt the self-recovery of neck muscles. During FSN treatment, reperfusion approach is recommended to adopt to improve the qi and blood circulation and recovery of neck function.
Acupuncture Analgesia ; Acupuncture Points ; Acupuncture Therapy ; Adult ; Female ; Humans ; Male ; Middle Aged ; Myofascial Pain Syndromes ; physiopathology ; therapy ; Neck Muscles ; physiopathology ; Range of Motion, Articular ; Spondylosis ; physiopathology ; therapy ; Trigger Points ; Young Adult

Objective To investigate the relationship of glycoprotein serglycin (SRGN) expression with invasion and metastasis of breast cancer cells,and the role of microRNA in the regulation of SRGN expression.Methods Real-time quantitative polymer ase chain reaction (PCR) and Western blot were used to detect the differences in SRGN expression between higher metastasis Michigan cancer foundation-7 (MCF-7)/5-Fu breast cancer cell lines and weaker metastasis MCF-7 cell line.The siRNA interference experiment and in vitro Transwell experiment were used to detect effect of SRGN on the ability of invasion and metastasis of breast cancer cells.Bioinformatics software was used to predict miRNAs targeting SRGN,and integrated microRNA differentially expressed chip data between breast cancer cell MCF-7 versus MCF-7/5-Fu.The miRNA quantitative PCR was used to determine the differences of candi date miRNA expression.After transfection of microRNA minics,Western blot was used to test candidate microRNA target SRGN.Transwell experiment was used to test the effects of candidate microRNAs on tumor cell invasion and metastasis.Results SRGN was increased significantly in MCF-7/5-Fu cells,and the invasion and metastasis of tumor cells were inhibited when SRGN was interfered.In addition,miR181 b/c expressed in MCF-7/5-Fu cells was reduced significantly,negatively correlated with SRGN expression,and targeted SRGN expression.It inhibited invasion and metastasis of tumor cells.Conclusions MicroRNA181b/c inhibits metastasis of breast cancer by targeting SRGN.

Objective To enhance clinicians' intention to the importance of early diagnosis,early therapy and follow-up of type Ⅱ citrullinemia.Methods The clinical data of one adult-onset type Ⅱ citrullinemia pedigree were collected. The gene mutation type of SLC25A13 of proband and her daughter were determined by PCR and direct gene sequencing.Results The patient was a 27 years-old female,who complained of repeated dizziness, vomiting for more than 2 years and recurrent attacks of altered consciousness for about one and a half year.An abdominal ultrasonogram,liver magnetic resonance imaging and liver histology obtained by needle biopsy all determined the liver pathological changes of liver cirrhosis.Electroencephalogram showed sharp waves. The plasma amino acid showed a marked elevation of blood citrulline.Laboratory findings revealed a highly increased concentration of plasma ammonia during every episode. Mutation analysis of the SLC25A13 gene identified a homozygote of 851del4 in the patient,and heterozygote of 851del4 in her daughter. Conclusions For adults,unexplained dizziness,vomiting,but liver function still in the compensation,especially accompanied by neuropsychologic symptoms are highly suggestive of adult-onset type Ⅱ citrullinemia.SLC25A13 gene analysis contributes to the diagnosis of this disease,avoids invasive investigations and early confirmation of this disease means long-term dietary advice,genetic counseling,medical surveillance and early preparation for liver transplantation if is necessary.