1.Bidirectional relationship between type 2 diabetes mellitus and coronary artery disease: Prospective cohort study and genetic analyses
Wenqiang ZHANG ; Li ZHANG ; Chenghan XIAO ; Xueyao WU ; Huijie CUI ; Chao YANG ; Peijing YAN ; Mingshuang TANG ; Yutong WANG ; Lin CHEN ; Yunjie LIU ; Yanqiu ZOU ; Ling ZHANG ; Chunxia YANG ; Yuqin YAO ; Jiayuan LI ; Zhenmi LIU ; Xia JIANG ; Ben ZHANG
Chinese Medical Journal 2024;137(5):577-587
Background::While type 2 diabetes mellitus (T2DM) is considered a putative causal risk factor for coronary artery disease (CAD), the intrinsic link underlying T2DM and CAD is not fully understood. We aimed to highlight the importance of integrated care targeting both diseases by investigating the phenotypic and genetic relationships between T2DM and CAD.Methods::We evaluated phenotypic associations using data from the United Kingdom Biobank ( N = 472,050). We investigated genetic relationships by leveraging genomic data conducted in European ancestry for T2DM, with and without adjustment for body mass index (BMI) (T2DM: Ncase/ Ncontrol = 74,124/824,006; T2DM adjusted for BMI [T2DM adjBMI]: Ncase/ Ncontrol = 50,409/523,897) and for CAD ( Ncase/ Ncontrol = 181,522/984,168). We performed additional analyses using genomic data conducted in multiancestry individuals for T2DM ( Ncase/ Ncontrol = 180,834/1,159,055). Results::Observational analysis suggested a bidirectional relationship between T2DM and CAD (T2DM→CAD: hazard ratio [HR] = 2.12, 95% confidence interval [CI]: 2.01–2.24; CAD→T2DM: HR = 1.72, 95% CI: 1.63–1.81). A positive overall genetic correlation between T2DM and CAD was observed ( rg = 0.39, P = 1.43 × 10 -75), which was largely independent of BMI (T2DM adjBMI–CAD: rg = 0.31, P = 1.20 × 10 –36). This was corroborated by six local signals, among which 9p21.3 showed the strongest genetic correlation. Cross-trait meta-analysis replicated 101 previously reported loci and discovered six novel pleiotropic loci. Mendelian randomization analysis supported a bidirectional causal relationship (T2DM→CAD: odds ratio [OR] = 1.13, 95% CI: 1.11-1.16; CAD→T2DM: OR = 1.12, 95% CI: 1.07-1.18), which was confirmed in multiancestry individuals (T2DM→CAD: OR = 1.13, 95% CI: 1.10-1.16; CAD→T2DM: OR = 1.08, 95% CI: 1.04-1.13). This bidirectional relationship was significantly mediated by systolic blood pressure and intake of 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitors, with mediation proportions of 54.1% (95% CI: 24.9-83.4%) and 90.4% (95% CI: 29.3-151.5%), respectively. Conclusion::Our observational and genetic analyses demonstrated an intrinsic bidirectional relationship between T2DM and CAD and clarified the biological mechanisms underlying this relationship.
2.Three-dimensional finite element analysis of lumbar disc herniation under different body positions
Ben-Jing YIN ; Yu LU ; Fu-Tao JI ; Rong-Neng QIU ; Yuan-Yang XIE ; Ge CHEN ; Tian-Li XU ; Chao-Yu BAO ; Ju-Bao LI
China Journal of Orthopaedics and Traumatology 2024;37(6):599-604
Objective To campare biomechanical effects of different postural compression techniques on three-dimensional model of lumbar disc herniation(LDH)by finite element analysis.Methods Lumbar CT image of a 48-year-old female patient with LDH(heighted 163 cm,weighted 53 kg)was collected.Mimics 20.0,Geomagic Studio,Solidwords and other software were used to establish three-dimensional finite element model of LDH on L4,5 segments.Compression techniques under horizon-tal position,30° forward bending and 10° backward extension were simulated respectively.After applying the pressure,the ef-fects of compression techniques under different positions on stress,strain and displacement of various tissues of intervertebral disc and nerve root were observed.Results L4,5 segment finite element model was successfully established,and the model was validated.When compression manipulation was performed on the horizontal position,30° flexion and 10° extension,the annular stress were 0.732,5.929,1.286 MPa,the nucleus pulposus stress were 0.190,1.527,0.295 MPa,and the annular strain were 0.097,0.922 and 0.424,the strain sizes of nucleus pulposus were 0.153,1.222 and 0.282,respectively.The overall displace-ment distance of intervertebral disc on Y direction were-3.707,-18.990,-4.171 mm,and displacement distance of nerve root on Y direction were+7.836,+5.341,+3.859 mm,respectively.The relative displacement distances of nerve root and interverte-bral disc on Y direction were 11.543,24.331 and 8.030 mm,respectively.Conclusion Compression manipulation could make herniated intervertebral disc produce contraction and retraction trend,by increasing the distance between herniated interverte-bral disc and nerve root,to reduce symptoms of nerve compression,to achieve purpose of treatment for patients with LDH,in which the compression manipulation is more effective when the forward flexion is 30°.
3.Clinical effects of en bloc resection and debridement combined with gluteus maximus muscle flap in the treatment of ischial tubercle pressure ulcer complicated with chronic osteomyelitis.
Ben Quan LIU ; De Sheng DONG ; Ming Yan SHI ; Wei ZHANG ; Wei WANG ; Yi Chao CHEN
Chinese Journal of Burns 2022;38(4):363-368
Objective: To investigate the clinical effects of en bloc resection and debridement combined with gluteus maximus muscle flap in the treatment of ischial tubercle pressure ulcer complicated with chronic osteomyelitis. Methods: A retrospective observational study was conducted. From May 2018 to February 2020, 8 patients with pressure ulcers on the ischial tuberosity combined with chronic osteomyelitis who met the inclusion criteria were admitted to Fuyang Minsheng Hospital, including 5 males and 3 females, aged 38-69 years, with unilateral lesions in 6 patients and bilateral lesions in 2 patients. According to the anatomical classification of Cierny-Mader osteomyelitis, there were 6 patients (7 sides) with focal type, and 2 patients (3 sides) with diffuse type. The wound areas were 3 cm×2 cm to 12 cm×9 cm on admission. The pressure ulcer and chronic osteomyelitis lesions were completely removed by en bloc resection and debridement. The chronic infectious lesions were transformed into sterile incisions like fresh wounds by one surgical procedure, and the gluteus maximus muscle flaps with areas of 10 cm×6 cm to 15 cm×9 cm were excised to transfer and fill the ineffective cavity. The wounds of 5 patients were sutured directly, and the wounds of 3 patients were closed by local flap transfer. The intraoperative blood loss volume and blood transfusion, and length of hospital stay of patients were recorded. The incision healing and flap survival of patients were observed after operation. The recurrence of pressure ulcer and osteomyelitis, the appearance of the affected area, and the secondary dysfunction and deformity of the muscle flap donor site of patients were observed during followed up. Results: The intraoperative blood loss volume of the 8 patients was 220 to 900 (430±150) mL; 5 patients received intraoperative blood transfusion, of which 2 patients received 3 U suspended red blood cells and 3 patients received 2 U suspended red blood cells. The length of hospital stay was 18 to 29 (23.5±2.0) d for the 8 patients. In this group of patients, the incisions of 7 patients healed, while in one case, the incision suture was torn off during turning over and healed after secondary suture. The flaps survived well in 3 patients who underwent local flap transfer. During the follow-up period of 6-20 months, no recurrence of pressure ulcer or osteomyelitis occurred in 8 patients, the affected part had skin with good texture, mild pigmentation, and no sinus tract formation, and no secondary dysfunction or deformity occurred in the donor site. Conclusions: The en bloc resection and debridement combined with gluteus maximus muscle flap has good clinical effects on ischial tubercle pressure ulcer complicated with chronic osteomyelitis. Neither pressure ulcer nor osteomyelitis recurs post operation. The skin texture and appearance of the affected area are good, and the donor site has no secondary dysfunction or deformity.
Blood Loss, Surgical
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Debridement
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Female
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Humans
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Male
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Muscles/surgery*
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Osteomyelitis/surgery*
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Perforator Flap
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Pressure Ulcer/surgery*
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Reconstructive Surgical Procedures
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Skin Transplantation
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Soft Tissue Injuries/surgery*
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Treatment Outcome
4.Method for synchronous measurement of multichannel electrode-scalp contact impedances in brain EIT
Hang MA ; Jun-Ying XIA ; Ben-Yuan LIU ; Bin YANG ; Rong-Qing CHEN ; Wei-Chen LI ; Xue-Chao LIU ; Xue-Tao SHI ; Xiu-Zhen DONG ; Feng FU
Chinese Medical Equipment Journal 2018;39(4):1-5
Objective To study a method for monitoring multichannel electrode-scalp contact impedances in electrical impedance tomography (EIT), and to provide support for exploring the impact of contact impedances on imaging and the suppression method.Methods A reference electrode was introduced for the system,placed on the back of the neck or the top of the head. In the spare time of boundary voltage signal acquisition phase, the method of two electrodes was adopted to measure the electrical impedance between each imaging electrode and reference electrode, which was used to analyze the characteristics of multichannel contact impedances.Based on the existing EIT hardware system,the module for monitoring multichannel contact impedance was implemented.Results The calibration board test showed that the measurement error of this method was less than 1‰,and the maximum relative fluctuation of the measurement result within 10 hours was less than 1‰. Preliminary human test indicated that this method had the ability to obtain two kinds of information about spatial consistency and temporal stability of 16-channel contact impedances. Conclusion This method has high accuracy and stability,so it meets the requirements of monitoring multichannel contact impedances in brain EIT.
5.Effect of diet on the pharmacokinetic of Picika oral solution in healthy human
Feng DUAN ; Zhen-Zhen ZHU ; Jing-Feng BI ; Ben-Chao CHEN ; Zhen CHEN ; Li ZHANG ; Hui JI ; Li-Wei LANG ; Min WANG ; Zhen-Man WEI
The Chinese Journal of Clinical Pharmacology 2016;(3):227-229
Objective To study the influence of diet on the pharmacoki-netic of Picika oral solution in healthy subjects.Methods This study taken random , before and after self-control design.Twelve subjects were randomly divided into 2 groups, each group was 6 cases, then they were given Picika oral solution 60 mL respectively before and after meal.Before and after administration , blood and urine samples were collected at different points , the plasma and urine concentration was measured and pharmacokinetic parameters were calculated.Results Before and after administration of Picika oral solution 60 mL, the drug pharmacokinetic parameters of active ingredients -CKL-A03 were listed as follows:t1/2 was ( 126.13 ± 74.04 ) , ( 104.81 ± 68.44 ) min; tmax were (53.75 ±10.03 ) and (58.75 ±11.89 ) min;Cmax were (3.06 ±0.86 ) and ( 3.81 ±2.82 )μg· L-1; AUC0-t were ( 268.81 ±84.25 ) and (355.03 ±177.82 )μg· L-1 · min in plasma respectively.t1/2 was (1.14 ± 0.12 ), ( 1.24 ± 0.16 ) h in the urine respectively.Conclusion Diet may affect the absorption and eliminate speed of the drug.
6.Pharmacokinetics of single dose of Picika oral solution in Chinese healthy volunteers
Zhen-Zhen ZHU ; Feng DUAN ; Jing-Feng BI ; Zhen CHEN ; Min WANG ; Li ZHANG ; Hui JI ; Li-Wei LANG ; Ben-Chao CHEN ; Zhen-Man WEI
The Chinese Journal of Clinical Pharmacology 2016;(3):230-234
Objective To evaluate the pharmacokinetic changes of Picika oral solution in healthy subjects after single dose.Methods This study taken random , three cross experiment design , 12 subjects were randomly divided into 6 groups, each group was 2 cases, then they were respec-tively given single oral doseof Picika oral solution (60, 90, 120 mL) in each cycle.Before and after administration , biological samples were col-lected for detection of blood drug concentration and urine drug concentra-tion, furthermore, calculation of blood and urine drug pharmacokinetic parameters.Results After single oral dose of 60, 90, 120 mL Picika oral solution, the main pharmacokinetic parameters of plasma CKL -A03, Cmax were (3.08 ±0.92), (3.63 ±0.75), (4.29 ±1.00)μg· L-1, tmax were (57.50 ±17.90 ), (52.50 ±20.73 ), (56.25 ±19.32 ) min, t1/2 were (197.51 ±106.35 ), (233.86 ±196.75 ), (141.34 ±65.16 ) min, AUC0-t were ( 383.28 ± 86.42 ) , ( 479.00 ± 136.25 ) , (540.59 ±102.87)μg · L-1 · min, AUC0-∞ were (710.06 ±233.03 ), (916.59 ±378.62 ), (782.65 ±130.40 )μg· L-1 · min, respectively. The main pharmacokinetic parameters of urine CKL -A03, t1/2 were (1.29 ±0.33), (1.23 ±0.20), (1.11 ±0.11) h, total urine discharge rates were (0.28 ±0.22)%, (0.20 ±0.11)%, (0.18 ±0.09)%, urine discharge amount were (74486.02 ±57923.42 ), (80015.14 ±43379.01 ), (93017.33 ±46658.61 ) mg.Conclusion The maximum oral absorption amount of Picika oral solution is possible 90 mL.And there is no apparent proportional relationship between the total urine discharge rate , urine discharge amount and the increased doses.
7.Pharmacokinetic study methodology in compound Chinese drug development
Jing-Feng BI ; Bo-Hua YAN ; Feng DUAN ; Zhen-Man WEI ; Wen-Tao XU ; Jun-Yuan TAN ; Zhen-Zhen ZHU ; Ben-Chao CHEN
The Chinese Journal of Clinical Pharmacology 2015;(16):1671-1673,1691
This study discussed whether the current pharmacokinetic study method of compound Chinese medicine could meet its research ob-jectives in drug development process.The conclusion were that, firstly, because the single or multiple active ingredient often do not represent the true effect of compound Chinese medicine, its findings may be biased. Secondly, drug accumulation method, pharmacological effect method, serum pharmacological method and integration of multi-effect component classifier method often draw pharmacokinetic results by pharmacodynamic study with thrust reversers method, but these methods can not accurately reflect the true pharmacokinetics in vivo.It might be more clinical value to make pharmacodynamic studies with pharmacodynamic markers.
8.PhaseⅠclinical tolerance study of Picika oral solution in healthy volunteers
Feng DUAN ; Jing-Feng BI ; Ben-Chao CHEN ; Zhen-Zhen ZHU ; Bin SUN ; Zhen CHEN ; Yu ZHANG ; Yan-Yan CHU ; Li ZHANG ; Min WANG ; Wen-Shu LI ; Cheng JIN ; Zhen-Man WEI
The Chinese Journal of Clinical Pharmacology 2014;(10):912-914
Objective To study the tolerability and safety of single and multiple doses of Picika oral solution in healthy volunteers.Methods A single center, randomized, single -blind, placebo -controlled, dose -escalation study was designed.50 patients were given single dose, and 10 cases were given multiple doses.All of them had half male and fe-male.Single -dose group: 20 mL(4 subjects), 40 mL(6 subjects), 60 mL(10 subjects; 2 using placebo), 90 mL(10 subjects; 2 using place-bo), 120 mL (10 subjects ; 2 using placebo), 160 mL (10 subjects; 2 using placebo); multiple doses group: 10 subjects(2 using placebo), 40 mL? times-1 , tid, continuous medication for 10 days.Results Of the sixty healthy subjects enrolled , 58 finally completed the trial, and two shed.One case (female) of adverse event in single -dose 160 mL group was reported: her ctivated partial thromboplastin time (APTT) was ab-normal with clinical significance.It may not be associated with the medi-cation.In multiple doses group, one case of abdominal pain (female) was reported, may not be associated with the medication.Conclusion Single and multiple doses of Picika oral solution are safe and well tolera -ted in healthy subjects.
9.Cyclosporine, prednisone, and high-dose immunoglobulin treatment of angioimmunoblastic T-cell lymphoma refractory to prior CHOP or CHOP-like regimen.
Xing-Gui CHEN ; He HUANG ; Ying TIAN ; Cheng-Cheng GUO ; Chao-Yong LIANG ; Yao-Ling GONG ; Ben-Yan ZOU ; Rui-Qing CAI ; Tong-Yu LIN
Chinese Journal of Cancer 2011;30(10):731-738
Angioimmunoblastic T-cell lymphoma (AITL) is a rare, distinct subtype of peripheral T-cell lymphoma, possessing an aggressive course and poor prognosis with no standard therapy. Twelve patients who have failed at least two initial CHOP or CHOP-like regimens were enrolled in this study and treated with individualized cyclosporine (CsA), prednisone (PDN), and monthly, high-dose intravenous immunoglobulin (HDIVIG). The dose of CsA was adjusted individually based on the blood trough concentration of CsA and renal function. All patients were examined for response, toxicity and survival. The most significant toxicities (≥ grade 2) were infection (16.7%), renal insufficiency (8.3%), hypertension (8.3%), diabetes (8.3%) and insomnia (16.7%). Discontinuation of treatment occurred in one patient (8.3%) due to grade 3 renal toxicity and subsequent grade 4 pulmonary infection. Treatment-related death was not observed. The overall response rate was 75.0% (complete response, 33.3%; partial response, 41.7%). With a median follow-up of 25.5 months, the median duration of response was 20 months (range, 12 to 49 months) and the median progression-free survival (PFS) was 25.5 months (range, 10 to 56 months). The 2-year PFS rate was 81.5%. Our findings indicate the combination of CsA, PDN and HDIVIG is an effective salvage regimen for refractory or relapsed AITL with predictable and manageable toxicity.
Aged
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Antineoplastic Combined Chemotherapy Protocols
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therapeutic use
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Combined Modality Therapy
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Cyclophosphamide
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therapeutic use
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Disease-Free Survival
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Doxorubicin
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therapeutic use
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Female
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Follow-Up Studies
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Humans
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Immunoglobulins
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administration & dosage
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therapeutic use
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Infusions, Intravenous
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Lymphoma, T-Cell, Peripheral
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drug therapy
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therapy
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Male
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Middle Aged
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Neoplasm Recurrence, Local
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Prednisolone
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therapeutic use
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Remission Induction
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Salvage Therapy
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Vincristine
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therapeutic use
10.Monocyte chemotactic protein-1 gene polymorphism and monocyte chemotactic protein-1 expression in Chongqing Han children with tuberculosis.
Zhen-e XU ; Yuan-yuan XIE ; Jun-hua CHEN ; Lin-lin XING ; Ai-hua ZHANG ; Ben-xiu LI ; Chao-min ZHU
Chinese Journal of Pediatrics 2009;47(3):200-203
OBJECTIVEThe aims of this study were to evaluate whether the presence of -2518A/G polymorphism in the distal regulatory region of the monocyte chemotactic protein-1 (MCP-1) was associated with tuberculosis (TB) in Chongqing Han population and to find whether it has a significant impact on the pediatric patient.
METHODOne hundred children [ < or = 15 years old, mean age (7.3+/-4.6) years, 53 male, 47 female] and one hundred adults [51 male, 49 female, age (44.6+/-13.5) years with TB] and 200 healthy controls of comparable age were screened for genotype by PCR-sequence-specific primer (SSP) method. MCP-1 levels in the sera were detected by ELISA.
RESULT(1) TB patients and controls showed different single nucleotide polymorphism (SNP) distribution patterns (58%, 36%). MCP-1 alleles -2518G was associated with increased TB susceptibility (P<0.01). (2) The -2518 GG genotypes was associated with increased TB susceptibility (32% in TB patients and 13% in non-TB controls respectively, P<0.01). (3) The odds of developing TB in genotypes GG were higher than those in homozygous AA, and the risk was higher in children than in adult (7.0-fold in children and 5.1-fold in adults, respectively). (4) Cases of homozygous GG had the highest plasma levels of MCP-1, which increased the likelihood of developing TB. Furthermore, higher levels were observed in children than in adults.
CONCLUSIONThese findings suggest that persons bearing the MCP-1 genotype GG produce high concentrations of MCP-1, which increases the risk of active TB infection in Chongqing Han people. These findings are more significant in child patients than in adult patients with TB.
Adult ; Alleles ; Asian Continental Ancestry Group ; genetics ; Case-Control Studies ; Chemokine CCL2 ; blood ; genetics ; Child ; Child, Preschool ; DNA Primers ; Female ; Genetic Predisposition to Disease ; Genotype ; Humans ; Male ; Middle Aged ; Polymorphism, Genetic ; Tuberculosis ; ethnology ; genetics ; metabolism

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