1.Application of flexible matching strategy to detect gene-environment interactions for increasing the study power
Xia LIANG ; Yong-Jing ZHANG ; Bing LIU ; Ming-Juan JIN ; Kun CHEN
Chinese Journal of Epidemiology 2010;31(1):96-99
Flexible matching has recently been proposed as a method of improving interactions efficiency. In this study, the concept of flexible matching has been introduced, and the applicability of this strategy has also been described based on the power calculation of interaction between HER-2 polymorphism and smoking with breast cancer. A large-sample approximation method is used to estimate the power and efficiency of gene-environment interactions. In the basic scenario, power of interaction between HER-2 polymorphism and smoking of unmatched case-control study appears to be 30% while in the frequency matching case-control study it is 56%. However, when increasing the smoking prevalence in controls, greater power can be obtained (power=74%). Conclusions: Flexible matching strategies can increase the power and efficiency of case-control studies to detect and estimate the gene-environment interactions when compared with traditional frequency matching and it is especially useful under those scenarios when low environmental exposure of population, adverse gene-environment interactions or less paired controls are seen. Optimal matching design should be made available by weighing the benefits and loss due to flexible matching.
2.DEGRADATION AND TRANSFORMATION OF COTTON SEED HULLS BY COPRINUS COMATUS
Xin-Jiang NI ; Zhi-Yong FENG ; Li-Kun LIANG ; Cui-Rong YOU ; Ying-Jie PAN ;
Microbiology 1992;0(02):-
Coprinus comatus cultivated on cotton seed hull medium decomposed lignocellulose straggly and was high of absolute biological efficiency. Lignocellulose is the main carbon source for the fruiting stage of the fungus. There existed the positive correlation between the degradation rates of the cellulose and hemicellulose in the medium and the activities of extracellular CMCase (carboxymenthelcel lulase), FPase (filter paper cellulase) and HCase (hemicellu-lase), there also existed the positive correlation between the degradation rate of the lignin in the medium and the activity of extracellular laccase, but no correlation between the degradatio rate of the lignin in the medium and the activity of peroxidase. The activity of extracellular amylase was comparatively high at mycelial growth stage, and the protease activity peek was at teh time when the fruitbody matured.
3.Effect of breastfeeding on childhood overweight in the offspring of mothers with gestational diabetes mellitus.
Ya-Ling ZHAO ; Run-Mei MA ; Yong-Kun HUANG ; Kun LIANG ; Zheng-Bo DING
Chinese Journal of Contemporary Pediatrics 2013;15(1):56-61
OBJECTIVETo investigate whether breastfeeding can reduce the risk of childhood overweight in the offspring of mothers with gestational diabetes mellitus (GDM).
METHODSFollow-up was performed on 1189 offspring of mothers with GDM between January 2003 and December 2009. The influence of the manner and duration of breastfeeding between 0 to 3 months after birth on the risk of childhood overweight in the offspring of mothers with GDM was analyzed by logistic regression.
RESULTSAfter correcting confounding factors such as pre-pregnancy BMI, gestational weight gain, gestational blood sugar, sex, birth weight, age and farther's body weight, it was found that the risk of childhood overweight in the offspring who received exclusive breastfeeding during the first 3 months after birth was lower than in the artificial feeding group (OR: 0.479, 95%CI: 0.256-0.897). Offspring who were breastfed for 0 to 3 months, 4 to 6 months and over 6 months had a lower risk of childhood overweight than the artificial feeding group (OR: 0.456, 95%CI: 0.233-0.827; OR: 0.29, 95%CI: 0.103-0.817; OR: 0.534, 95%CI: 0.280-0.970), offspring who were breastfed for 4 to 6 months had a lower risk of childhood overweight than those who were breastfed for 0 to 3 months (OR: 0.372, 95%CI: 0.129-0.874), and offspring who were breastfed for more than 6 months did not show significantly lower risk of overweight than those who were breastfed for less than 6 months (OR: 0.769, 95%CI: 0.470-1.258).
CONCLUSIONSWithin 3 months of birth, breastfeeding, especially exclusively, may reduce the risk of childhood overweight in the offspring of mothers with GDM. Within 6 months of birth, the risk of childhood overweight decreases as the duration of breastfeeding increases, but prolonging the duration of breastfeeding cannot necessarily reduce the risk of childhood overweight after postnatal six months.
Birth Weight ; Breast Feeding ; Diabetes, Gestational ; metabolism ; Female ; Humans ; Infant ; Infant, Newborn ; Logistic Models ; Overweight ; prevention & control ; Pregnancy ; Risk
4.Multicenter clinical study of the predictive value of neutrophil gelatinase-associated lipocalin for contrast-induced acute kidney injury after emergency percutaneous coronary intervention in patients with relative normal renal function
Kun WANG ; Ning TAN ; Yong LIU ; Jiyan CHEN ; Nianjin XIE ; Danqin YU ; Ling XUE ; Jianfeng YE ; Yan LIANG
The Journal of Practical Medicine 2017;33(4):554-557
Objective To explore the predictive value of neutrophil gelatinase associated lipocalin (NGAL) for contrast-induced acute kidney injury (CI-AKI) after emergency percutaneous coronary interventions (PCI) in patients with relative normal renal function.Methods A total of 73 patients with relative normal renal function undergoing PCI were enrolled in this prospective multicenter clinical study.Serum NGAL was measured by point-of-care test.Receiver operating characteristic (ROC) curve was used to analyze the diagnostic value of NGAL for CI-AKI.Results CI-AKI occurred in 5 patients (6.85%).The concentration of NGAL was higher in the CI-AKI group than in the non-CI-AKI group.ROC curve indicated that the area under the receiver operating characteristic was 0.755,0.761 and 0.809,respectively.Conclusions Serum NGAL at baseline,4 h and 8 h after procedure are served as a good biomarker for early diagnosis of CI-AKI after PCI.Therefore,NGAL might become an early and quick marker for CI-AKI in the future.
5.Prenatal diagnosis of prelingual deafness by determination of SLC26A4 gene mutation
Hao HU ; Lingqian WU ; Desheng LIANG ; Yong FENG ; Fang CAI ; Kun XIA ; Qian PAN ; Zhigao LONG ; Heping DAI ; Jiahui XIA
Chinese Journal of Obstetrics and Gynecology 2000;0(09):-
G mutation of SLC26A4, the parents and the second child were carriers of the same mutation, while the fetus had a wild-type form. Conclusion It is feasible to identify deafness related genes by screening for GJB2 and SLC26A4 mutation, thus providing correct prenatal diagnosis and avoiding deaf delivery of baby.
6.A case report of infection of Mycobacterium senegalense after abdominal liposuction
YU Ya-zhuan ; ZHU Chuan-long ; DU Yong-guo ; LI Wen-ting ; ZHANG Li-yuan ; WU Kun-liang ; WANG Qiang
China Tropical Medicine 2022;22(12):1215-
Abstract: Mycobacterium senegalense is one of the major pathogens causing bovine farcy, and reports of its infection in
human are rare. Here is a report on a woman who had been taking hormones and immunosuppressants for a long time for SLE
and underwent abdominal soft tissue infection with Mycobacterium senegalense after abdominal liposuction, to provide reference
for clinical diagnosis and treatment. The patient, female, 32 years old, has a history of SLE for more than 2 years, and currently
takes "methylprednisolone, hydroxychloroquine, and mycophenolate mofetil" regularly. Nine months before the patient was
admitted to the hospital, she once performed abdominal, waist and buttock liposuction in a medical beauty institution. One
month after the operation, several masses gradually appeared on the abdominal wall, accompanied by tenderness, one of the
masses had obvious fluctuation on palpation and purulent fluid could be drawn out. The location of the abdominal wall mass
was consistent with the insertion site of the liposuction needle. After the onset of the disease, the patient went to the medical
beauty institution for puncture of the abdominal wall mass, and 5 mL of purulent fluid was pierced and sent for bacterial
culture, and cultured "Mycobacterium Senegalense", after 3 days of treatment with "cephalosporin" antibiotics (specifically
unknown), the symptoms did not improve, so she went to the second affiliated hospital of hainan medical college. After
completing the relevant examinations during the hospitalization in our hospital, in order to clarify the etiology, another
abdominal puncture to extract pus was performed, the mycobacterial culture + identification results: Mycobacterium
senegalense. Consistent with the out-of-hospital results, the diagnosis of Mycobacterium senegalense infection was confirmed.
After 3 months of treatment with "cefoxitin, azithromycin, amikacin, and levofloxacin", the patient's abdominal wall soft tissue
infection was cured. Trauma or invasive procedures can lead to skin, muscle, or bone infection with nontuberculous
mycobacteria (NTM), which can manifest as chronic painless nodules that progress to purulent folliculitis and abscesses. NTM
infection should be suspected when the patient's wound has been exposed to water, there is a history of surgery, and empirical
anti-infection is ineffective. This is the first case of Mycobacterium senegalense infection caused by medical beauty, which tell
people that they should be cautious when choosing medical aesthetic projects and medical aesthetic institutions.
7.Current progress in the permeability and its enhancement approches for TCM active ingredients across blood -eye barrier
Yu-Yang, BAI ; You-Zhi, TANG ; Zhen, WANG ; Li-Na, LIANG ; Shang-Kun, ZHOU ; Yong-Sheng, YANG
International Eye Science 2014;(10):1801-1804
Blood-eye barrier (BEB) is one of the most important structures of organism to maintain homeostasis of the eye. However, it is the major constraint for the medication of intraocular diseases. Traditional Chinese medicines have distinctive advantages for the treatment of intraocular diseases, which can be used to regulate the physiological function of human body with low toxicity. In this article, we have briefly summarized the feature of BEB, with the domestic and foreign literatures combined, and mainly reviewed current progress in the field of study on the permeability of traditional Chinese medicines and effective components in BEB and promoting methods.
8.Glossopharyngeal neuralgia:MR findings
Yong-An GAO ; Wei-Wei SHI ; Hua-Liang LIU ; Zhong-Wei WANG ; Jing-Xi YIN ; Kun-Cheng LI ; Hong-Wei ZHU ; Yong-Jie LI ;
Chinese Journal of Radiology 2001;0(03):-
Objective To investigate the possibility of MRI on visualizing the relationship between glossopharyngeal nerve and surrounding vessels,and to evaluate the significance of MRI in the diagnosis and treatment of glossopharyngeal neuralgia.Methods MRI findings were analyzed retrospectively in 12 patients with glossopharyngeal neuralgia,and were compared with surgical findings and effect of pain relief.Results The artery compression or contact of the glossopharyngeal entry zone,as revealed during operation in l0 patients with glossopharyngeal neuralgia,was visualized on MRI in 9 and not seen in 1.The venous compression of the glossopharyngeal entry zone was not identified on MRI in 1.The conglutinative arachnoids of the glossopharyngeal entry zone was not visualized on MRI in 1.MRI demonstrated the affected glossopharyngeal nerve root entry zone was compressed or contacted by the posterior inferior cerebellar artery (PICA)in 8 patients and by the vertebral artery in 1 patient.One patient's offending vessel was confirmed to be the anterior inferior cerebellar artery(AICA)by the operation,and the surgical findings were corresponded with MRI in others.Vascular compression or contact of the affected glossopharyngeal nerve was not visualized on MRI in 3 patients,and operation confirmed that the glossopharyngeal nerve root entry zone was compressed by unknown artery in 1,by small vein in 1,and by eonglutinative araehnoids in 1, respectively.Eight patients presented with symptoms of the ipsilateral trigeminal neuralgia concurrently.The compression of the affected trigeminal nerve root by superior cerebellar artery(SCA)was visualized on MRI in 6 patients,and operation did not reveal the source of artery compression in 1 and corresponded with MRI findings in other 5 cases.Vascular compression of affected trigeminal nerve was not visualized on MRI in 2 patients,and intraoperative inspection revealed that trigeminal nerve root was compressed by draining vein of brainstem in 1 and not compressed by any vessels in 1.All patient's neuralgia resolved after microvascular decompression of glossopharyngeal nerve and trigeminal nerve.Conclusion It is possible to visualize the glossopharyngeal and surrounding arteries on MRI,and it is of great significance in the diagnosis and treatment of this kind of glossopharyngeal neuralgia.
9.Treatment and outcome of epileptogenic temporal cavernous malformations.
Yong-Zhi SHAN ; Xiao-Tong FAN ; Liang MENG ; Yang AN ; Jian-Kun XU ; Guo-Guang ZHAO
Chinese Medical Journal 2015;128(7):909-913
BACKGROUNDThe aim of this study is to explore the treatment and outcome of epileptogenic temporal lobe cavernous malformations (CMs).
METHODSWe analyzed retrospectively the profiles of 52 patients diagnosed as temporal lobe CMs associated with epilepsy. Among the 52 cases, 11 underwent a direct resection of CM along with the adjacent zone of hemosiderin rim without electrocorticogram (ECoG) monitoring while the other 41 cases had operations under the guidance of ECoG. Forty-six patients were treated by lesionectomy + hemosiderin rim while the other six were treated by lesionectomy + hemosiderin rim along with extended epileptogenic zone resection. The locations of lesions, the duration of illness, the manifestation, the excision ranges and the outcomes of postoperative follow-up were analyzed, respectively.
RESULTSAll of the 52 patients were treated by microsurgery. There was no neurological deficit through the long-term follow-up. Outcomes of seizure control are as follows: 42 patients (80.8%) belong to Engel Class I, 5 patients (9.6%) belong to Engel Class II, 3 patients (5.8%) belong to Engel Class III and 2 patients (3.8%) belong to Engel Class IV.
CONCLUSIONPatients with epilepsy caused by temporal CMs should be treated as early as possible. Resection of the lesion and the surrounding hemosiderin zone is necessary. Moreover, an extended excision of epileptogenic cortex or cerebral lobes is needed to achieve a better prognosis if the ECoG indicates the existence of an extra epilepsy onset origin outside the lesion itself.
Adolescent ; Adult ; Child ; Electroencephalography ; Epilepsy ; surgery ; Female ; Hemangioma, Cavernous, Central Nervous System ; surgery ; Humans ; Male ; Middle Aged ; Retrospective Studies ; Temporal Lobe ; pathology ; surgery ; Treatment Outcome ; Young Adult
10.Relationship between selection of Pinus massoniana families and Folium Pini.
Man-xi ZHAO ; Cui-qi YAN ; Wei WANG ; Jian-ming YE ; Yong-kun ZHONG ; Zun-hong KE ; Xiao-feng HAO ; Xiao KE ; Liang YE ; Lu-qi HUANG
China Journal of Chinese Materia Medica 2015;40(9):1699-1704
Based on variation of Pinus massoniana families, heritablility and correlation analysis, the contents of shikimic acid and procyanidine (heritability 0.90, 0.70), dry weight of single branch (heritability 0.60) and and leaf length (heritability 0.46) were screened out as quality, yield and harvest cost traits of Folium Pini, respectively. For the different medicinal application of Folium Pini, varied methods were chosen to estimate weight and construct index equation. Weight adjustment based.on equal emphasis were used as economic weight determining method to select the best families, and the index (accuracy 0. 936 4 and heritability 0. 881 6) obtained was a little better than that obtained by equal emphasis, and much better than that by restricted index. The superior families selected with adjustment weight and equal emphasis were No. 46, 43 and 28. Partial regression were used as economic weight determining method to select the best families,and the index obtained had the highest accuracy (0.941 5) , index heritability (0. 889 9) and the genetic gain of shikimic acid content. The superior families selected with this method were No. 46, 27 and 47. No. 46 was the best families with maximal economic benefit. Our study indicated that suitable method for estimate weight and construct index equation can be applied for better accuracy of superior families selection of P. massoniana.
Breeding
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Drugs, Chinese Herbal
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analysis
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Pinus
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chemistry
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classification
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genetics
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growth & development
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Plant Leaves
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chemistry
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Plants, Medicinal
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chemistry
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classification
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genetics
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growth & development