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Zhang GM, Liu PH, Chen L, Zheng JM, Zhao GP, Xing WH, Wen J, Li QH. Genome-wide association study identifies variants associated with semen volume in white-feathered broilers. Anim Genet 2023; 54:803-807. [PMID: 37705287 DOI: 10.1111/age.13358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 07/05/2023] [Accepted: 09/01/2023] [Indexed: 09/15/2023]
Abstract
Semen is a measure of the reproductive efficiency of roosters, which affects the economic benefits of white-feathered broilers. Over the years, research in this field has mainly focused on hens, while there have been fewer studies on the reproductive traits of roosters. To identify the genes related to the semen traits of roosters, we used a chicken 55 K SNP chip to genetically type the white-feathered population (220) and performed imputation with resequencing data from 97 roosters. In total, 1 048 576 SNPs were obtained and used for genome-wide association analysis of semen volume, from which 197 genome-wide significant markers were identified, all within the interval of 13.82-16.12 Mb on chromosome 7. By combining our results with the biological functions of genes in the interval, four candidate genes were identified that potentially relate to semen volume: FAPP1, OSBPL6, SESTD1 and SSFA2. Our findings may provide a basis for further research on the genetic mechanism and marker-assisted selection of semen volume in white-feathered broilers.
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Affiliation(s)
- G M Zhang
- State Key Laboratory of Animal Nutrition, Key Laboratory of Animal (Poultry) Genetics Breeding and Reproduction, Ministry of Agriculture, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - P H Liu
- State Key Laboratory of Animal Nutrition, Key Laboratory of Animal (Poultry) Genetics Breeding and Reproduction, Ministry of Agriculture, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - L Chen
- Institute of Animal Husbandry and Veterinary Medicine, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - J M Zheng
- State Key Laboratory of Animal Nutrition, Key Laboratory of Animal (Poultry) Genetics Breeding and Reproduction, Ministry of Agriculture, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - G P Zhao
- State Key Laboratory of Animal Nutrition, Key Laboratory of Animal (Poultry) Genetics Breeding and Reproduction, Ministry of Agriculture, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - W H Xing
- State Key Laboratory of Animal Nutrition, Key Laboratory of Animal (Poultry) Genetics Breeding and Reproduction, Ministry of Agriculture, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - J Wen
- State Key Laboratory of Animal Nutrition, Key Laboratory of Animal (Poultry) Genetics Breeding and Reproduction, Ministry of Agriculture, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Q H Li
- State Key Laboratory of Animal Nutrition, Key Laboratory of Animal (Poultry) Genetics Breeding and Reproduction, Ministry of Agriculture, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
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Liu PH, Tsai TH, Yeo KJ, Chou JW. Behçet's disease-induced massive small intestinal bleeding successfully treated with adalimumab. J Postgrad Med 2023; 0:379145. [PMID: 37357487 PMCID: PMC10394525 DOI: 10.4103/jpgm.jpgm_931_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2023] Open
Abstract
We herein report a case of Behçet's disease in a 27-year-old female who suffered from generalized skin rashes for one week. After hospitalization, massive bloody stools accompanying hypovolemic shock occurred. Emergency abdominal computed tomography-angiography failed to detect the bleeding source. Esophagogastroduodenoscopy also demonstrated no definite bleeding points. Ileocolonoscopy showed multiple large and deep ulcers with some blood coating and mild oozing in the terminal ileum. We initially performed epinephrine injection and hemoclips for her intestinal bleeding. However, massive bloody stools still continued. Thus, we prescribed a loading dose of 160 mg adalimumab followed by weekly 80 mg adalimumab subcutaneous injections to the patient. Following this treatment, her gastrointestinal bleeding gradually subsided and completely stopped within a few days. After three-week therapy with adalimumab, capsule endoscopy showed several healing ulcers without bleeding in the distal to the terminal ileum. She continues to be treated with adalimumab, azathioprine, and mesalazine without recurrent bleeding.
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Affiliation(s)
- P H Liu
- Department of Education, China Medical University Hospital, Taichung, Taiwan
| | - T H Tsai
- Department of Education, China Medical University Hospital, Taichung, Taiwan
| | - K J Yeo
- Division of Rheumatology, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan
| | - J W Chou
- Center for Digestive Medicine, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan
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Liu PH, Hao JD, Li WY, Tian J, Zhao J, Zeng YM, Dong GQ. Congenital cytomegalovirus infection and the risk of hearing loss in childhood: A PRISMA-compliant meta-analysis. Medicine (Baltimore) 2021; 100:e27057. [PMID: 34516495 PMCID: PMC8428733 DOI: 10.1097/md.0000000000027057] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 08/06/2021] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Congenital cytomegalovirus (cCMV) infection is the most common cause of childhood hearing loss (HL), although the strength of this association remains limited and inconclusive. Thus, the purpose of this study was to summarize evidence regarding the strength of the relationship between cCMV and childhood HL and to determine whether this relationship differs according to patient characteristics. METHODS The PubMed, EmBase, and Cochrane Library databases were searched for studies evaluating the relationship between cCMV and HL from inception to September 2019. Odds ratios (ORs) and corresponding 95% confidence intervals (CIs) were used to calculate the investigated outcomes in a random-effects model. Sensitivity, subgroup, and publication bias analyses were also performed. RESULTS A total of 15 studies involving 235,026 children met the inclusion criteria and were included in the final analysis. The summary results indicated that cCMV infection was associated with an increased risk of HL (odds ratio [OR]: 8.45; 95% confidence interval [CI]: 3.95-18.10; P < .001), irrespective of whether studies reported sensorineural HL (OR: 5.42; 95% CI: 1.98-14.88; P = .001), or did not evaluate HL types among their patients (OR: 11.04; 95% CI: 3.91-31.16; P < .001). However, in studies conducted in the United States (P < 0.001) and published in or after 2000 (P = 0.026), the study populations included <60% males (P < 0.001). Moreover, studies of high quality (P < .001) demonstrated a significantly greater risk of HL with cCMV infection than that in the corresponding subgroups. CONCLUSIONS The study results suggest that cCMV infection increases the risk of HL. Further studies are required to investigate the association of cCMV infection with the risk of specific subtypes of HL.
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Zhang JY, Peng H, Gong ST, Zeng YM, Huang M, Liu PH, Wang LT, Dong GQ. The role of peroxisome proliferator-activated receptor gamma and adiponectin in children with Kawasaki disease. J Int Med Res 2021; 49:300060521994925. [PMID: 33729859 PMCID: PMC7975572 DOI: 10.1177/0300060521994925] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVE To investigate the relationship between peroxisome proliferator-activated receptor gamma (PPARγ) mRNA, serum adiponectin (ADP) and lipids in paediatric patients with Kawasaki disease (KD). METHODS This prospective study enrolled paediatric patients with KD and grouped them according to the presence or absence of coronary artery lesions (CAL). A group of healthy age-matched children were recruited as the control group. The levels of PPARγ mRNA, serum ADP and lipids were compared between the groups. Receiver operating characteristic (ROC) curve analysis was undertaken to determine if the PPARγ mRNA level could be used as a predictive biomarker of CAL prognosis. RESULTS The study enrolled 42 patients with KD (18 with CAL [CAL group] and 24 without CAL [NCAL group]) and 20 age-matched controls. PPARγ mRNA levels in patients with KD were significantly higher than those in the controls; but significantly lower in the CAL group than the NCAL group. ROC curve analysis demonstrated that the PPARγ mRNA level provided good predictive accuracy for the prognosis of CAL. There was no association between PPARγ, ADP and lipid levels. CONCLUSION There was dyslipidaemia in children with KD, but there was no correlation with PPARγ and ADP. PPARγ may be a predictor of CAL in patients with KD with good predictive accuracy.
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Affiliation(s)
- Ji-Yong Zhang
- Department of Paediatrics, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China.,Department of Paediatrics, Affiliated Shenzhen Maternity and Child Healthcare Hospital, Southern Medical University, Shenzhen, Guangdong Province, China
| | - Hong Peng
- Department of Infectious Disease, Shenzhen People's Hospital, Shenzhen, Guangdong Province, China
| | - Si-Tang Gong
- Department of Paediatrics, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China
| | - Yong-Mei Zeng
- Department of Paediatrics, Affiliated Shenzhen Maternity and Child Healthcare Hospital, Southern Medical University, Shenzhen, Guangdong Province, China
| | - Miao Huang
- Department of Paediatrics, Affiliated Shenzhen Maternity and Child Healthcare Hospital, Southern Medical University, Shenzhen, Guangdong Province, China
| | - Pei-Hui Liu
- Department of Paediatrics, Affiliated Shenzhen Maternity and Child Healthcare Hospital, Southern Medical University, Shenzhen, Guangdong Province, China
| | - Li-Ting Wang
- Department of Paediatrics, Affiliated Shenzhen Maternity and Child Healthcare Hospital, Southern Medical University, Shenzhen, Guangdong Province, China
| | - Guo-Qing Dong
- Department of Paediatrics, Affiliated Shenzhen Maternity and Child Healthcare Hospital, Southern Medical University, Shenzhen, Guangdong Province, China
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Yang SC, Chiu YC, Liu PH, Hsieh TJ, Kao YH, Tu YK. Effect of benign prostatic hyperplasia on the development of spine, hip, and wrist fractures. Osteoporos Int 2019; 30:1043-1049. [PMID: 30706096 DOI: 10.1007/s00198-019-04863-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 01/20/2019] [Indexed: 10/27/2022]
Abstract
UNLABELLED Benign prostatic hyperplasia is one of the most common diseases in the elderly male population. The urinary tract symptoms may increase the risk of falls and fractures. The results indicated that patients with benign prostatic hyperplasia could increase the risk of vertebral compression fractures in both the thoracic and lumbar spine and also hip fractures, but did not increase the risk of wrist fracture. INTRODUCTION The relationship between benign prostatic hyperplasia and the development of fall-related fractures, especially vertebral compression fractures, has been seldom mentioned in the literature. This study aimed to evaluate the risk of developing vertebral compression fracture, hip fracture, and wrist fracture in patients with benign prostatic hyperplasia. METHODS This study obtained claims data retrospectively from the National Health Insurance Research Database of Taiwan and identified 48,114 patients who were diagnosed as having benign prostatic hyperplasia. Subjects of the control cohort were individually matched at a ratio of 4:1 with those in the benign prostatic hyperplasia cohort according to age and the index day. Comorbidities were classified as those existing before the index day and included a previous fracture history, osteoporosis, myocardial infarction, congestive heart failure, diabetes mellitus, hypertension, cerebrovascular accident, etc. The end of the follow-up period of the analyses was the day when the patient developed new vertebral compression fractures, hip fractures, or wrist fractures, terminated enrollment from the National Health Insurance, or died or until the end of 2012. The study used the Cox proportion hazard model to determine the hazard ratio for developing new hip fractures. RESULTS Patients with benign prostatic hyperplasia were significantly more likely than those in the control cohort to develop new vertebral compression fractures in the thoracic spine (0.43% vs. 0.40%, adjusted hazard ratio 3.03, confidence interval 2.12-4.31) and lumbar spine (1.26% vs. 1.23%, adjusted hazard ratio 4.12, confidence interval 3.39-5.01), and hip fracture (1.47% vs. 2.09%, adjusted hazard ratio 1.22, confidence interval 1.10-1.36), but does not increase the risk of wrist fracture (0.61% vs. 0.67%, adjusted hazard ratio 1.07, confidence interval 0.85-1.34). CONCLUSIONS Patients with benign prostatic hyperplasia exhibited an increased risk of developing vertebral compression fractures in both the thoracic and lumbar spine and also hip fractures, but did not increase the risk of wrist fracture. However, more research is needed to confirm this trend in the clinical setting.
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Affiliation(s)
- S C Yang
- Department of Orthopedic Surgery, E-Da Hospital / I-Shou University, No.1, E-Da Road, Kaohsiung City, Taiwan, 82445, People's Republic of China.
| | - Y C Chiu
- Department of Orthopedic Surgery, E-Da Hospital, No.1, E-Da Road, Kaohsiung City, Taiwan, 82445, People's Republic of China.
| | - P H Liu
- Department of Biomedical Engineering, I-Shou University, No.8, E-Da Road, Kaohsiung City, Taiwan, 82445, People's Republic of China
| | - T J Hsieh
- Department of Orthopedic Surgery, E-Da Hospital, No.1, E-Da Road, Kaohsiung City, Taiwan, 82445, People's Republic of China
| | - Y H Kao
- Department of Orthopedic Surgery, E-Da Hospital, No.1, E-Da Road, Kaohsiung City, Taiwan, 82445, People's Republic of China
| | - Y K Tu
- Department of Orthopedic Surgery, E-Da Hospital / I-Shou University, No.1, E-Da Road, Kaohsiung City, Taiwan, 82445, People's Republic of China
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Dong YX, Zhang HY, Li HY, Liu PH, Sui Y, Sun XH. Association between Alzheimer's disease pathogenesis and early demyelination and oligodendrocyte dysfunction. Neural Regen Res 2018; 13:908-914. [PMID: 29863022 PMCID: PMC5998637 DOI: 10.4103/1673-5374.232486] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The APPSwe/PSEN1dE9 (APP/PS1) transgenic mouse model is an Alzheimer's disease mouse model exhibiting symptoms of dementia, and is commonly used to explore pathological changes in the development of Alzheimer's disease. Previous clinical autopsy and imaging studies suggest that Alzheimer's disease patients have white matter and oligodendrocyte damage, but the underlying mechanisms of these have not been revealed. Therefore, the present study used APP/PS1 mice to assess cognitive change, myelin loss, and corresponding changes in oligodendrocytes, and to explore the underlying mechanisms. Morris water maze tests were performed to evaluate cognitive change in APP/PS1 mice and normal C57BL/6 mice aged 3 and 6 months. Luxol fast blue staining of the corpus callosum and quantitative reverse transcription-polymerase chain reaction (qRT-PCR) for myelin basic protein (MBP) mRNA were carried out to quantify myelin damage. Immunohistochemistry staining for NG2 and qRT-PCR for monocarboxylic acid transporter 1 (MCT1) mRNA were conducted to assess corresponding changes in oligodendrocytes. Our results demonstrate that compared with C57BL/6 mice, there was a downregulation of MBP mRNA in APP/PS1 mice aged 3 months. This became more obvious in APP/PS1 mice aged 6 months accompanied by other abnormalities such as prolonged escape latency in the Morris water maze test, shrinkage of the corpus callosum, upregulation of NG2-immunoreactive cells, and downregulation of MCT1 mRNA. These findings indicate that the involvement of early demyelination at 3 months and the oligodendrocyte dysfunction at 6 months in APP/PS1 mice are in association with Alzheimer's disease pathogenesis.
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Affiliation(s)
- Yu-Xia Dong
- Department of Neurology, The Fourth Affiliated Hospital of China Medical University, Shenyang; Department of Neurology, Fushun Second Hospital, Fushun, Liaoning Province, China
| | - Hui-Yu Zhang
- Department of Neurology, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Hui-Yuan Li
- Department of Neurology, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Pei-Hui Liu
- Department of Neurology, The Fourth Affiliated Hospital of China Medical University, Shenyang; Department of Neurology, Huludao Central Hospital, Huludao, Liaoning Province, China
| | - Yi Sui
- Department of Neurology, The Fourth Affiliated Hospital of China Medical University; Department of Neurology, Shenyang First People's Hospital, Shenyang, Liaoning Province, China
| | - Xiao-Hong Sun
- Department of Neurology, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China
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Yang JK, Liu W, Liu PH, Wu X, Sun Y, Dai RS. Prevalence of Asian fish tapeworm Bothriocephalus in grass carp in Dongting Lake of Hunan province, subtropical China. Trop Biomed 2017; 34:237-239. [PMID: 33593002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We investigated the prevalence of Asian fish tapeworm Bothriocephalus infection in grass carp in Dongting Lake of Hunan province, subtropical China between August 2014 and October of 2015. A total of 2534 fish samples from four representative administrative regions in Hunan province, subtropical China were examined for the presence of Bothriocephalus using helminthological approach. The overall prevalence of Bothriocephalus in grass carp was 6.6% (167/2534). The prevalence of Bothriocephalus in grass carp was higher in summer (10.0%) and spring (7.0%) than in autumn (6.0%) and winter (3.3%) (P<0.01). The highest prevalence of Bothriocephalus was found in grass carp with body weight 0.5<Weight<1.5 group with 1-91 infected intensity. The highest intensity of infection was in summer (23-104), and least in winter (1-32). The present survey revealed the prevalence of Bothriocephalus in grass carp in Dongting Lake of Hunan province, subtropical China. To our knowledge, this is the first report of Bothriocephalus prevalence in grass carp in China.
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Affiliation(s)
- J K Yang
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, People's Republic of China
| | - W Liu
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, People's Republic of China
| | - P H Liu
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, People's Republic of China
| | - X Wu
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, People's Republic of China
| | - Y Sun
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, People's Republic of China
| | - R S Dai
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, People's Republic of China
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Zeng YM, Zhang JY, Dong GQ, Liu PH, Xiao F, Zhang ZJ, Wu QZ. [Application of oral food challenge in the diagnosis of cow's milk protein allergy]. Zhongguo Dang Dai Er Ke Za Zhi 2016; 18:564-566. [PMID: 27324548 PMCID: PMC7389074 DOI: 10.7499/j.issn.1008-8830.2016.06.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 03/15/2016] [Indexed: 06/06/2023]
Affiliation(s)
- Yong-Mei Zeng
- Department of Pediatrics, Shenzhen Maternal and Child Health Hospital, ShenZhen 518000, China
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Xu FR, Pan BL, Wang YW, Pan ZD, Dai XX, Liu PH, Wang M. Pharmacokinetics of injectable long-acting ivermectin aqueous suspension following subcutaneous administration in sheep. J Vet Pharmacol Ther 2007; 30:486-8. [PMID: 17803744 DOI: 10.1111/j.1365-2885.2007.00881.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- F R Xu
- College of Veterinary Medicine, China Agricultural University, Beijing, China
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Xiao ZJ, Liu PH, Qin JY, Xu P. Statistical optimization of medium components for enhanced acetoin production from molasses and soybean meal hydrolysate. Appl Microbiol Biotechnol 2007; 74:61-8. [PMID: 17043817 DOI: 10.1007/s00253-006-0646-5] [Citation(s) in RCA: 125] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2006] [Revised: 08/18/2006] [Accepted: 08/22/2006] [Indexed: 11/27/2022]
Abstract
The nutritional requirements for acetoin production by Bacillus subtilis CICC 10025 were optimized statistically in shake flask experiments using indigenous agroindustrial by-products. The medium components considered for initial screening in a Plackett-Burman design comprised a-molasses (molasses submitted to acidification pretreatment), soybean meal hydrolysate (SMH), KH(2)PO(4).3H(2)O, sodium acetate, MgSO(4).7H(2)O, FeCl(2), and MnCl(2), in which the first two were identified as significantly (at the 99% significant level) influencing acetoin production. Response surface methodology was applied to determine the mutual interactions between these two components and optimal levels for acetoin production. In flask fermentations, 37.9 g l(-1) acetoin was repeatedly achieved using the optimized concentrations of a-molasses and SMH [22.0% (v/v) and 27.8% (v/v), respectively]. a-Molasses and SMH were demonstrated to be more productive than pure sucrose and yeast extract plus peptone, respectively, in acetoin fermentation. In a 5-l fermenter, 35.4 g l(-1) of acetoin could be obtained after 56.4 h of cultivation. To our knowledge, these results, i.e., acetoin yields in flask or fermenter fermentations, were new records on acetoin fermentation by B. subtilis.
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Affiliation(s)
- Z J Xiao
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, 250100, People's Republic of China
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Xiao ZJ, Xie NZ, Liu PH, Hua DL, Xu P. Tetramethylpyrazine production from glucose by a newly isolated Bacillus mutant. Appl Microbiol Biotechnol 2006; 73:512-8. [PMID: 16802153 DOI: 10.1007/s00253-006-0491-6] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2006] [Revised: 04/30/2006] [Accepted: 05/02/2006] [Indexed: 11/29/2022]
Abstract
2,3,5,6-Tetramethylpyrazine (TTMP) was produced using a newly isolated Bacillus mutant. Culture medium optimization studies showed that soytone, an enzyme-hydrolysate of soybean meal, with the supplementation of vitamins, can fully replace yeast extract plus peptone in supporting TTMP production from glucose. In a 5-l fermenter, using the optimized medium which contained 20% glucose, 5% soytone, 3% (NH(4))(2)HPO(4), and vitamin supplements, fermentations were carried out with stirring at 700 rpm, air flow at 1.0 vvm, controlled pH at 7.0, and temperature at 37 degrees C. TTMP reached 4.33 g l(-1) after 64.6 h cultivation. A product recovery method was described, which involved evaporation, crystallization, and lyophilization. The product purity was 99.88%, determined by GC with the normalization method. The main impurities were 2,3,5-trimethylpyrazine (0.09%) and 2-ethyl-3,5,6-trimethylpyrazine (0.02%), which were identified by GC/MS. (13)C NMR determination also gave a consistent result. Natural and high purity of the product and the utilization of cheap green renewable materials make this process promising to compete with TTMP chemical synthetic methods.
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Affiliation(s)
- Z J Xiao
- State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, People's Republic of China
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Abstract
The purpose of this study was to provide more information about the morphological characteristics of the craniofacial complex in mandibular prognathism. Forty young adult males having mandibular prognathism were compared with 40 having normal occlusion. This was conducted to carry out geometric morphometric assessments to localize alterations, using Procrustes analysis and thin-plate spline analysis, in addition to conventional cephalometric techniques. Procrustes analysis indicated that the mean craniofacial, midfacial and mandibular morphology was significantly different in prognathic subjects compared with normal controls. This finding was corroborated by the multivariate Hotelling T(2)-test of cephalometric variables. Mandibular prognathism demonstrated a shorter and slightly retropositioned maxilla, a greater total length and anterior positioning of the mandible. Thin-plate spline analysis revealed a developmental diminution of the palatomaxillary region anteroposteriorly and a developmental elongation of the mandible anteroposteriorly, leading to the appearance of a prognathic mandibular profile. In conclusion, thin-plate spline analysis seems to provide a valuable supplement for conventional cephalometric analysis because the complex patterns of craniofacial shape change are visualized suggestive by means of grid deformations.
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Affiliation(s)
- H P Chang
- Department of Orthodontics and Graduate Institute of Dental Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan.
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13
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Abstract
There is insufficient evidence in conventional cephalometric analysis of the actual sites of putative maxillofacial change in Class II and Class III malocclusions. The purpose of this study was to provide more information about the morphological characteristics of the midfacial complex and mandible in children with Class II or III malocclusions. Seventy children with Class II, division 1 malocclusion and 70 children with Class III malocclusion were compared with 70 children with normal occlusion. This study was conducted to carry out geometric morphometric assessments to localize alterations using Procrustes analysis and thin-plate spline analysis. Procrustes analysis indicated the midfacial and mandibular morphologies differed between normal occlusion subjects and subjects with Class II or Class III malocclusion (P<0.0001). The deformations in subjects with Class II malocclusion may represent a developmental elongation of the palatomaxillary complex and a shortening of the mandible anteroposteriorly, which leads to the appearance of a protruding midface and retruding mandibular profile. In contrast, the deformations in subjects with Class III malocclusion may represent a developmental shortening of the palatomaxillary complex and elongation of the mandible anteroposteriorly, which leads to the appearance of a retrognathic midface and prognathic mandibular profile.
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Affiliation(s)
- H P Chang
- Department of Orthodontics and Graduate Institute of Dental Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan.
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14
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Chang HP, Lin HC, Liu PH, Chang CH. Geometric morphometric assessment of treatment effects of maxillary protraction combined with chin cup appliance on the maxillofacial complex. J Oral Rehabil 2005; 32:720-8. [PMID: 16159349 DOI: 10.1111/j.1365-2842.2005.01504.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The aim of this study was to investigate the treatment effects on the maxillofacial complex by maxillary protraction combined with chin cup therapy among growing children. An effective geometric morphometric assessment of cephalometric radiographs, using Procrustes analysis and thin-plate spline analysis, was applied to evaluate shape change in the craniofacial and midfacial configurations of a treated sample of 20 children with skeletal Class III malocclusion. This was compared with matched untreated skeletal Class III controls. Marked treatment induced change involved the maxilla and the mandible. Major deformation consisted of forward advancement of the maxillary complex with negligible rotation of the palatal plane and a forward direction of growth of the mandibular condyle associated with a restriction in sagittal advancement of the chin. Considerable dentoalveolar components contributed to the correction of anterior crossbite. Further detailed study of skeletofacial remodelling in response to maxillary protraction in other skeletal components, including the cranial base and the mandibular complex that contribute to Class III skeletal discrepancies, is warranted.
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Affiliation(s)
- H P Chang
- Department of Orthodontics and Graduate Institute of Dental Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan.
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Abstract
We describe two cases of Class III malocclusion with and without orthodontic treatment. A thin-plate spline (TPS) analysis of lateral cephalometric radiographs was used to visualize transformations of the mandible. The actual sites of mandibular skeletal change are not detectable with conventional cephalometric analysis. These case analyses indicate that specific patterns of mandibular transformation are associated with Class III malocclusion with or without orthopaedic therapy, and visualization of these deformations is feasible using TPS graphical analysis.
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Affiliation(s)
- H P Chang
- Department of Orthodontics, School of Dentistry and Graduate Institute of Dental Sciences, Kaohsiung Medical University, Taiwan.
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16
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Liu PH, Svoronos SA, Koopman B. Experimental and modeling study of diauxic lag of Pseudomonas denitrificans switching from oxic to anoxic conditions. Biotechnol Bioeng 1998; 60:649-55. [PMID: 10099474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
We have shown that Pseudomonas denitrificans undergo a diauxie when switching from dissolved oxygen to nitrate as terminal electron acceptor. The length of time under aeration significantly affected the length of the diauxic lag, whereas the presence or absence of nitrate in the culture under aeration had a marginal effect. Nitrate consumption was very low during the lag period and then increased rapidly, coinciding with exponentially increasing biomass concentrations. Biochemical rate expressions that account for enzyme synthesis and activity in response to culture conditions and enzyme specific levels were developed. The new model successfully predicts the different lengths of diauxic lags observed in the experiments as well as the growth pattern and nitrate uptake.
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Affiliation(s)
- P H Liu
- Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA
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17
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Zhao D, Liu PH, Fu AH. [Protective effect of putrescine on oleic acid-induced respiratory distress syndrome (RDS)]. Zhonghua Jie He He Hu Xi Za Zhi 1994; 17:156-8, 190. [PMID: 7834771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The effect of putrescine on oleic acid-induced RDS were studied in rat, it was found that preadministration of putrescine to rat with RDS significantly improved its hypoxemia, pulmonary edema and histologic injury; inhibited the leakage of protein from plasma; lowered increase of pulmonary lipid peroxidation products (malondialdehde, MDA). The result suggests that putrescine could have significant potential for clinical treatment of acute pulmonary injury.
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Affiliation(s)
- D Zhao
- Laboratory of Cardiopulmonary Endocrinology, Beijing Medical University
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18
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Kamiya H, Liu PH, Ishigooka S, Blas BL. Application of alcohol- or acetone-fixed Schistosoma eggs as an alternative to lyophilized eggs for the circumoval precipitin test. Southeast Asian J Trop Med Public Health 1991; 22:417-21. [PMID: 1818394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Antigenicity of Schistosoma mansoni and S. japonicum eggs preserved in ethanol or acetone were assessed in a circumoval precipitin (COP) assay. The egg antigens were found to retain sufficiently their COP reactivity for the diagnosis of both schistosomiasis mansoni and japonica, although their reactivity became lower than that of lyophilized eggs. These alternative preparations for COP tests have advantages, such as keeping eggs directly in fixatives soon after the egg-purification process. Furthermore, evaporation-process may cause eggshell cleavages which facilitate the reaction. The possible usefulness of those eggs in COP assays in local endemic areas is discussed.
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Affiliation(s)
- H Kamiya
- Department of Parasitology, Hirosaki University School of Medicine, Aomori, Japan
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19
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Abstract
We report a case of esophageal rupture in a five-month-old female infant caused by a Foley catheter gastrostomy tube inadvertently placed into the esophagus at the time of tube change. The patient presented with vomiting and progressive respiratory distress and when first evaluated had a left-sided pneumothorax. The esophageal location of the Foley balloon was not initially apparent. Metrizamide radiography demonstrated the esophageal rupture. The patient recovered with drainage of the mediastinal and pleural collections. Physicians and caretakers should be alerted to the mechanical complications of Foley catheter tube gastrostomy, since these complications are mostly preventable and easily diagnosed.
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Affiliation(s)
- S Whiteley
- Section of Emergency Medicine, University Medical Center, Tucson
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20
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Liu PH, Jeng JR, Yang SP, Wang DJ, Shieh SM. Clinical experience with percutaneous intra-aortic balloon pumping in cardiogenic shock complicating acute myocardial infarction. Zhonghua Yi Xue Za Zhi (Taipei) 1989; 43:299-306. [PMID: 2804784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
From July 1984 to December 1987, intra-aortic balloon pumping (IABP) was attempted percutaneously to 22 patients at the ages of 37-78 with cardiogenic shock or medically refractory heart failure complicating acute myocardial infarction (CS/MRHF-AMI). There was only one failure because of severe bilateral iliofemoral atherosclerosis. Of the 21 patients undergoing IABP, 17 were in cardiogenic shock and 13 of them showed reversal of shock syndrome after 10 to 48 hours of IABP. Cardiac index increased from 1.91 +/- 0.43 to 2.45 +/- 0.43 L/min/M2 (P less than 0.005), spontaneous systolic arterial pressure rose from 79 +/- 10 to 114 +/- 19 mmHg (P = 0.0001), heart rate dropped from 111 +/- 26 to 85 +/- 13 beats/min (P = 0.0001), pulmonary artery wedge pressure decreased from 29 +/- 5 to 16 +/- 3 mmHg (P = 0.0001), and urine output increased from 7 +/- 10 to 79 +/- 22 ml/h (P = 0.0001). Twelve patients, including 4 shock-free, were subsequently weaned from balloon assistance. Of these patients, 8 (5 shock and 3 nonshock) were discharged from the hospital and followed-up for a mean period of 23 months (4 to 38 months). Of the surviving patients, 4 underwent surgical reperfusion and/or infarctectomy during balloon support (n = 1) or after weaning from IABP (n = 3). All of the 10 patients who underwent coronary angiogram were found a severe left anterior descending artery lesion. The main complication was leg ischemia, which was observed in 7 patients: 3 needed removal or replacement of balloon catheter and one required surgical removal of the thrombus.(ABSTRACT TRUNCATED AT 250 WORDS)
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Liu PH, Wang WB, Wang DJ, Shieh SM, Sung PK. Three types of atrioventricular reciprocating tachycardia using bilateral accessory pathways in a patient with Wolff-Parkinson-White syndrome. J Electrocardiol 1989; 22:173-80. [PMID: 2708934 DOI: 10.1016/0022-0736(89)90088-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Electrophysiologic studies were performed on a patient with Wolff-Parkinson-White syndrome and recurrent supraventricular tachycardia. Bilateral accessory pathways capable of antegrade and retrograde conduction and three different types of atrioventricular (AV) reciprocating tachycardia were demonstrated. One type of narrow QRS tachycardia used the normal AV pathway for antegrade conduction and the left-sided accessory pathway for retrograde conduction. Two types of wide QRS tachycardia (one with right bundle branch block and one with left bundle branch block) used both accessory pathways for antegrade and retrograde conduction, respectively, and were independent of the normal AV pathway. The data showed that bilateral accessory pathways have different electrophysiologic properties and participate in three different types of AV reciprocating tachycardia.
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Affiliation(s)
- P H Liu
- Division of Cardiology, Tri-Service General Hospital, National Defense Medical Center, Taiwan, Republic of China
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22
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Liu PH, Hwang LF, Wang DJ, Chou L, Chen CY, Yang SP, Shieh SM, Sung PK. Holter monitoring findings in patients with syncope or presyncope. Zhonghua Yi Xue Za Zhi (Taipei) 1988; 41:115-22. [PMID: 3167656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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23
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Chu KM, Liu PH, Chen CY, Wang DJ, Shieh SM. Clinical experiences with adenosine triphosphate for acute management of supraventricular tachycardia. Taiwan Yi Xue Hui Za Zhi 1987; 86:98-103. [PMID: 3471864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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24
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Sung PK, Shieh SM, Ko GC, Wang DJ, Young MS, Liu PH. Natural history of coronary artery disease in relation to angiographic, hemodynamic and clinical factors. Proc Natl Sci Counc Repub China B 1985; 9:178-86. [PMID: 4070505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Studying the natural history of coronary artery disease could provide a frame of reference for prognosis and appraisal of treatment for patients having this disease. We studied a total of 465 consecutive patients with angiographically significant coronary artery disease, defined as greater than 50% stenosis in at least one principal artery, who were followed with medical treatment only from 1 to 7 years. Excluding patients with left main coronary disease, there were 73 deaths, of whom 63 were cardiac. The 5-year cumulative survival rates were 72% for the entire group, 87% for single vessel disease, 73% for double vessel disease and 51% for triple vessel disease. In single vessel disease, patients with left anterior descending artery involvement tended to have higher mortality. In double vessel disease, survival was worse with the combination of left anterior descending and right coronary artery involvements than the other 2 combinations. A history of myocardial infarction was not significantly different from angina in 5-year survival rate. Nevertheless, an abnormal Q-wave in ECG was associated with lower survival. History of hypertension and electrocardiographic left ventricular hypertrophy did not affect survival. While congestive heart failure, abnormal resting LVEDP and left ventricular asynergy were all associated with reduced survival. The left ventricular ejection fraction had highly prognostic value, only 42% of patients survived with ejection fraction less than 0.3 at the end of 5 years after angiography.
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Liu PH, Lin CC, Ko GC, Wang DJ, Shieh SM, Sung PK. Electrophysiologic effects of amiodarone in tachyarrhythmias. Taiwan Yi Xue Hui Za Zhi 1985; 84:759-75. [PMID: 3864917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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26
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Liu PH, Ho HL. Experience of gynaecomastia in Hong Kong Chinese. J R Coll Surg Edinb 1985; 30:164-6. [PMID: 4045774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Liu PH, Lai WY, Chen CY, Shieh SM. [A comparative study of carteolol and propranolol on exercise performance in patients with chronic stable angina pectoris]. Taiwan Yi Xue Hui Za Zhi 1985; 84:457-61. [PMID: 3860617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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28
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Jeng CY, Bian TY, Shian LR, Huang HW, Shen DD, Liu PH. A comparative study of the short therapeutic effect of amiodarone and iodine on Graves' thyrotoxicosis. Taiwan Yi Xue Hui Za Zhi 1984; 83:1238-46. [PMID: 6597854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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29
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Liu PH, Shieh SM, Sung PK. Demonstration of 3 types of reciprocating tachycardia in a patient with Wolff-Parkinson-White syndrome. Taiwan Yi Xue Hui Za Zhi 1984; 83:1158-66. [PMID: 6597281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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31
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Abstract
We present two cases of incontinentia pigmenti in a father and his daughter and discuss possible modes of inheritance. The mode of inheritance in our patients is known.
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Liu PH, Lin CC, Wang DJ, Shieh SM, Sung PK. Participation of nodoventricular bypass tract in tachycardia. Taiwan Yi Xue Hui Za Zhi 1984; 83:73-85. [PMID: 6586990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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33
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Liu PH, Ho HL. Ginger and drug bezoar induced small bowel obstruction. J R Coll Surg Edinb 1983; 28:397-8. [PMID: 6663528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Abstract
To assess antiarrhythmic efficacy of oral nadolol, 15 patients with recurrent supraventricular tachycardia were studied. Eight patients had atrioventricular (AV) nodal reentrant tachycardia and seven had AV reciprocating tachycardia involving an accessory AV pathway. Electrophysiologic studies were performed before and after intravenous infusion of propranolol (0.20 mg/kg), and were repeated 5 to 8 days after oral nadolol therapy at a daily dose of 80 to 160 mg. Both intravenous propranolol and oral nadolol induced significant prolongation of the sinus cycle length from 741 +/- 73 ms to 834 +/- 97 and 1,029 +/- 95 ms, respectively (p less than 0.001 and p less than 0.0001, respectively). Both intravenous propranolol and oral nadolol depressed AV nodal but not accessory AV pathway conduction, and shifted the dual AV nodal pathway conduction curves (A1A2, A2H2; A1A2, H1H2) upward and to the right by prolonging the conduction time and increasing the refractory period. Ten patients (seven with AV nodal reentry and three with AV reciprocation) who responded to intravenous propranolol also responded to oral nadolol with loss of the inducibility of sustained tachycardia; the remaining five patients (one with AV nodal reentry and four with AV reciprocation) who did not respond to intravenous propranolol also failed to respond to oral nadolol with persistence of the inducibility of sustained tachycardia. Thus, in conclusion, intravenous propranolol testing predicts the therapeutic efficacy of oral nadolol therapy and oral nadolol in once-daily doses may be used for long-term prophylaxis of recurrent supraventricular tachycardia.
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