1.Construction and practice of perioperative oral nursing program for patients with laparoscopic thyroidectomy via oral vestibule approach
Fengjie XUE ; Yan SI ; Yunting WANG ; Ming LIU ; Meiping SHEN ; Pingping WANG
Chinese Journal of Practical Nursing 2025;41(29):2241-2248
Objective:To develop and validate a perioperative oral care protocol for patients undergoing oral vestibular approach endoscopic thyroid cancer radical surgery, providing practical guidance for clinical nursing.Methods:The protocol was constructed through literature analysis and Delphi expert consultation. A prospective non-randomized controlled study was conducted using convenience sampling, enrolling 60 patients who underwent oral vestibular approach endoscopic thyroid cancer radical surgery at the First Affiliated Hospital with Nanjing Medical University Thyroid Center between August 2023 and May 2024. Participants were divided into control group (from August to December, 2023) and experimental group (from January to May, 2024) based on admission dates with 30 cases in each group. The control group received routine care, while the experimental group received the developed oral care protocolin on the basis of the control group. Postoperative pain scores, mouth-opening difficulties, and oral cleanliness were compared on days 1, 3, and 7 after surgery.Results:The final protocol comprised 7 first-level indicators (team collaboration, health education, preoperative oral assessment, preoperative management, intraoperative management, postoperative management, and discharge follow-up), 17 second-level indicators, and 49 third-level indicators. The control group had 4 males and 26 females, with an age of (29.57 ± 5.34) years; the experimental group had 6 males and 24 females, with an age of (29.87 ± 6.25) years. On postoperative days 1, 3, and 7, the pain scores were 3.87 ± 1.01, 3.30 ± 0.92, and 2.53 ± 0.68 in the control group and 3.20 ± 0.87, 2.10 ± 0.76, and 1.50 ± 0.51 in the experimental group, respectively. The differences between the two groups were statistically significant ( t = 2.89, 5.12, 6.34, all P<0.05). For mouth-opening difficulties, the control group had 6, 13, and 15 patients with grade I on postoperativedays 1, 3, and 7, respectively, while the experimental group had 10, 20, and 25 patients with gradeⅠ. The control group had 20, 14, and 14 patients with gradeⅡonpostoperative days 1, 3, and 7, respectively, while the experimental group had 17, 10, and 5 patients with gradeⅡ. The control group had 4, 3, and 1 patients with grade Ⅲ on postoperative days 1, 3, and 7, respectively, while the experimental group had 3, 0, and 0 patients with grade Ⅲ. There were 0 cases in both groups with grade Ⅳ. The differences between the two groups on postoperative days 3, and 7 were statistically significant ( χ2 = 10.45, 18.67, both P<0.05). For oral cleanliness, the control group had 3, 4, and 5 patients with excellent cleanliness on postoperative days 1, 3, and 7, respectively, while the experimental group had 11, 16, and 19 patients with excellent cleanliness. The control group had 20, 22, and 23 patients with good cleanliness on postoperative days 1, 3, and 7, respectively, while the experimental group had 18, 13, and 10 patients with good cleanliness. The control group had 7 (23.33%), 4 (13.33%), and 2 (6.67%) patients with poor cleanliness on postoperative days 1, 3, and 7, respectively, while the experimental group had 1 (3.33%), 1 (3.33%), and 1 (3.33%) patients with poor cleanliness. The differences between the two groups were statistically significant ( χ2 = 9.19, 11.32, 16.68, all P<0.05). Conclusions:The developed perioperative oral care protocol is scientifically sound, feasible, and practical. Following the intervention, significant decreases in pain scores, alleviation of trismus symptoms, and marked improvements in oral cleanliness were observed in patients compared to pre-intervention assessments, and worth further clinical application.
2.Construction and practice of perioperative oral nursing program for patients with laparoscopic thyroidectomy via oral vestibule approach
Fengjie XUE ; Yan SI ; Yunting WANG ; Ming LIU ; Meiping SHEN ; Pingping WANG
Chinese Journal of Practical Nursing 2025;41(29):2241-2248
Objective:To develop and validate a perioperative oral care protocol for patients undergoing oral vestibular approach endoscopic thyroid cancer radical surgery, providing practical guidance for clinical nursing.Methods:The protocol was constructed through literature analysis and Delphi expert consultation. A prospective non-randomized controlled study was conducted using convenience sampling, enrolling 60 patients who underwent oral vestibular approach endoscopic thyroid cancer radical surgery at the First Affiliated Hospital with Nanjing Medical University Thyroid Center between August 2023 and May 2024. Participants were divided into control group (from August to December, 2023) and experimental group (from January to May, 2024) based on admission dates with 30 cases in each group. The control group received routine care, while the experimental group received the developed oral care protocolin on the basis of the control group. Postoperative pain scores, mouth-opening difficulties, and oral cleanliness were compared on days 1, 3, and 7 after surgery.Results:The final protocol comprised 7 first-level indicators (team collaboration, health education, preoperative oral assessment, preoperative management, intraoperative management, postoperative management, and discharge follow-up), 17 second-level indicators, and 49 third-level indicators. The control group had 4 males and 26 females, with an age of (29.57 ± 5.34) years; the experimental group had 6 males and 24 females, with an age of (29.87 ± 6.25) years. On postoperative days 1, 3, and 7, the pain scores were 3.87 ± 1.01, 3.30 ± 0.92, and 2.53 ± 0.68 in the control group and 3.20 ± 0.87, 2.10 ± 0.76, and 1.50 ± 0.51 in the experimental group, respectively. The differences between the two groups were statistically significant ( t = 2.89, 5.12, 6.34, all P<0.05). For mouth-opening difficulties, the control group had 6, 13, and 15 patients with grade I on postoperativedays 1, 3, and 7, respectively, while the experimental group had 10, 20, and 25 patients with gradeⅠ. The control group had 20, 14, and 14 patients with gradeⅡonpostoperative days 1, 3, and 7, respectively, while the experimental group had 17, 10, and 5 patients with gradeⅡ. The control group had 4, 3, and 1 patients with grade Ⅲ on postoperative days 1, 3, and 7, respectively, while the experimental group had 3, 0, and 0 patients with grade Ⅲ. There were 0 cases in both groups with grade Ⅳ. The differences between the two groups on postoperative days 3, and 7 were statistically significant ( χ2 = 10.45, 18.67, both P<0.05). For oral cleanliness, the control group had 3, 4, and 5 patients with excellent cleanliness on postoperative days 1, 3, and 7, respectively, while the experimental group had 11, 16, and 19 patients with excellent cleanliness. The control group had 20, 22, and 23 patients with good cleanliness on postoperative days 1, 3, and 7, respectively, while the experimental group had 18, 13, and 10 patients with good cleanliness. The control group had 7 (23.33%), 4 (13.33%), and 2 (6.67%) patients with poor cleanliness on postoperative days 1, 3, and 7, respectively, while the experimental group had 1 (3.33%), 1 (3.33%), and 1 (3.33%) patients with poor cleanliness. The differences between the two groups were statistically significant ( χ2 = 9.19, 11.32, 16.68, all P<0.05). Conclusions:The developed perioperative oral care protocol is scientifically sound, feasible, and practical. Following the intervention, significant decreases in pain scores, alleviation of trismus symptoms, and marked improvements in oral cleanliness were observed in patients compared to pre-intervention assessments, and worth further clinical application.
3.Survey of hyperuricemia and related factors among elderly in a community of Shanghai
Hongru WANG ; Meiping ZHOU ; Hua ZHONG ; Zhenyuan SHEN ; Hongmei HUAN ; Ming JIN ; Xue SUN
Chinese Journal of General Practitioners 2022;21(5):430-436
Objective:To investigate the prevalence of hyperuricemia (HUA), patients′ awareness of HUA, and related factors among elderly in community.Methods:The health check-up data of 6 897 residents aged over 65 years in Gumei Community of Shanghai were collected from January 2019 to January 2020. There were 1 156 subject with increased serum uric acid levels (HUA group) and 5 741 with normal uric acid levels (non-HUA group). The differences of clinical indicators between HUA group and non-HUA group were analyzed and the risk factors of HUA was determined by multivariate logistic stepwise regression. A questionnaire survey on the knowledge of HUA and the adoption of relevant health behaviors was conducted among HUA patients.Results:The overall prevalence was 16.8% (1 156/6 897) in this population. The prevalence in males was significantly higher than that in females[26.4%(842/3 195) vs. 8.5%(314/3 702), P<0.001); and the prevalence in females increased with age (χ 2=7.56, P=0.023). Body mass index(BMI), waist circumference(WC), total cholesterol(TC), triglyceride(TG), serum creatinine, alanine aminotransferase(ALT) and albumin/urine creatinine ratio(UACR) in the HUA group were significantly higher than those in the non-HUA group, while estimated glomerular filtration rate(eGFR) and high-density lipoprotein(HDL) were lower than those in the non-HUA group (all P<0.01). The prevalence of hypertension, decreased renal function, overweight or obesity, abdominal obesity, fatty liver and renal cyst in HUA group was significantly higher than that in non-HUA group (all P<0.01). High values of TG, low-density lipoprotein(LDL), WC, hypertension and fatty liver were risk factors for HUA( OR=1.14, 1.20, 1.03, 1.43, 2.19; P<0.01); while female gender, eGFR, HDL and glycosylated hemoglobin A1c(HbA1c) were protective factors for HUA( OR=0.32, 0.94, 0.65, 0.78; P<0.01). The questionnaire survey was conducted among 1 090 HUA patients, and the results showed that 73.2% (798 cases) were aware of the disease after the health check-up results released; only 30.9% (337 cases) knew the diagnostic criteria of HUA, 21.1% (230 cases) knew that HUA needed life-long follow-up care, 56.3% (614 cases), 49.2% (536 cases) and 47.9% (522 cases) thought that HUA should eat less seafood, broth and soya bean products, 17.0%(185 cases) were atcohol drinker and the awareness rates of above questions in patients with gout were higher than those in patients without gout ( P<0.05). Conclusion:The study shows that the prevalence of HUA among the elderly in Gumei community of Shanghai is high, and the HUA related knowledge levels and health behavior performance are not ideal, especially for HUA patients without gout, therefore health education should be strengthened for elderly residents in the community.
4.Chinese Society of Allergy and Chinese Society of Otorhinolaryngology-Head and Neck Surgery Guideline for Chronic Rhinosinusitis
Zheng LIU ; Jianjun CHEN ; Lei CHENG ; Huabin LI ; Shixi LIU ; Hongfei LOU ; Jianbo SHI ; Ying SUN ; Dehui WANG ; Chengshuo WANG ; Xiangdong WANG ; Yongxiang WEI ; Weiping WEN ; Pingchang YANG ; Qintai YANG ; Gehua ZHANG ; Yuan ZHANG ; Changqing ZHAO ; Dongdong ZHU ; Li ZHU ; Fenghong CHEN ; Yi DONG ; Qingling FU ; Jingyun LI ; Yanqing LI ; Chengyao LIU ; Feng LIU ; Meiping LU ; Yifan MENG ; Jichao SHA ; Wenyu SHE ; Lili SHI ; Kuiji WANG ; Jinmei XUE ; Luoying YANG ; Min YIN ; Lichuan ZHANG ; Ming ZHENG ; Bing ZHOU ; Luo ZHANG
Allergy, Asthma & Immunology Research 2020;12(2):176-237
The current document is based on a consensus reached by a panel of experts from the Chinese Society of Allergy and the Chinese Society of Otorhinolaryngology-Head and Neck Surgery, Rhinology Group. Chronic rhinosinusitis (CRS) affects approximately 8% of Chinese adults. The inflammatory and remodeling mechanisms of CRS in the Chinese population differ from those observed in the populations of European descent. Recently, precision medicine has been used to treat inflammation by targeting key biomarkers that are involved in the process. However, there are no CRS guidelines or a consensus available from China that can be shared with the international academia. The guidelines presented in this paper cover the epidemiology, economic burden, genetics and epigenetics, mechanisms, phenotypes and endotypes, diagnosis and differential diagnosis, management, and the current status of CRS in China. These guidelines—with a focus on China—will improve the abilities of clinical and medical staff during the treatment of CRS. Additionally, they will help international agencies in improving the verification of CRS endotypes, mapping of eosinophilic shifts, the identification of suitable biomarkers for endotyping, and predicting responses to therapies. In conclusion, these guidelines will help select therapies, such as pharmacotherapy, surgical approaches and innovative biotherapeutics, which are tailored to each of the individual CRS endotypes.
Adult
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Asian Continental Ancestry Group
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Biomarkers
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China
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Consensus
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Diagnosis
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Diagnosis, Differential
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Drug Therapy
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Eosinophils
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Epidemiology
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Epigenomics
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Genetics
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Humans
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Hypersensitivity
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Inflammation
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International Agencies
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Medical Staff
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Neck
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Phenotype
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Precision Medicine
5.Observation and analysis of systemic reactions to house dust mite subcutaneous immunotherapy in 362 patients with allergic rhinitis
Jianrong XUE ; Jing MA ; Changyu QIU ; Zhibang HU ; Xing JIANG ; Min PAN ; Meiping LU ; Lei CHENG
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2020;55(5):445-451
Objective:To investigate the frequency and severity of systemic reactions (SRs) to standardized house dust mite subcutaneous immunotherapy (SCIT) in patients with perennial allergic rhinitis (AR), and to analyze the clinical risk factors.Methods:The clinical data of 362 patients including 209 males and 153 females, aged from 5 to 55 years old receiving SCIT at the Department of Otorhinolaryngology, the Third People′s Hospital of Changzhou were collected from May 2014 to July 2017. The SRs were classified as early-onset and delayed-onset, and 4 grades (grade Ⅰ to Ⅳ) to assess severity. The records of SRs were retrospectively analyzed, including the numbers/frequencies, symptoms and signs, onset of reaction and treatment. And the relationships between SRs and patient′s age, gender, allergen injection dose, accompanied allergic diseases were explored. All the statistical analyses were conducted using SPSS 19.0.Results:There were 57 cases (15.75%) of SRs in 362 patients. All the patients received a total of 12 308 injections and 111 SRs (0.90%) were observed. Among them, 31 (27.93%) were early-onset reactions and 80 (72.07%) were delayed-onset reactions; most of the SRs were grade Ⅰ reactions ( n=83, 74.78%), followed by grade Ⅱ ( n=25, 22.52%), grade Ⅲ ( n=3, 2.70%), and no fatal reactions occurred. The incidence of SRs in patients>14 years old was higher than that in patients ≤14 years old according to the number of cases and injections (35.14% vs 13.54%, 2.34% vs 0.76%, χ 2 value was 11.679, 28.162, respectively, all P<0.05), but no significant differences of SRs were observed in gender (18.66% vs 11.76%, 5.98% vs 5.62%, χ 2 value was 3.166, 0.095, respectively, all P>0.05). Fifteen SRs (13.51%) occurred during the build-up phase and 96 (86.49%) during the maintenance phases. SRs could occur in lots of dose phases, and 95 (85.59%) were distributed at high concentrations more than 40 000 SQ-U. The incidence of SRs in patients with multiple allergic diseases was significantly higher than that in patients with AR alone, with asthma or atopic dermatitis (30.67% vs 11.85%, χ 2=15.875, P<0.001). Meanwhile, the incidence of SRs in patients with pure AR was also significantly lower than that in patients with other allergic diseases (5.26% vs 20.56%, χ 2=13.783, P<0.001). Conclusions:The incidence of SRs is less than 1% according to the injection times, the severity of SRs is mostly slight, and the safety and tolerance are good during standardized house dust mite SCIT in perennial AR patients. Delayed-onset SRs are more common. The incidence of SRs is significantly correlated with age, high dose of allergen vaccine injection, and concomitant other allergic diseases (asthma, atopic dermatitis, etc).
6.Effect of glucagon-like peptide 1 receptor agonists on body fat redistribution and muscle mass in overweight and obese type 2 diabetic patients.
Yudan ZHANG ; Shiqun LIU ; Cunxia FAN ; Yanmei ZENG ; Jimin LI ; Cuihua XIE ; Yaoming XUE ; Meiping GUAN
Journal of Southern Medical University 2019;39(4):450-455
OBJECTIVE:
To investigate the effect of glucagon-like peptide 1 receptor agonists (GLP-1RAs) on body fat redistribution and muscle mass in overweight/obese patients with type 2 diabetes (T2DM).
METHODS:
We retrospectively analyzed the data of 76 patients with body mass indexes (BMI)≥24 kg/m, who had an established diagnosis of T2DM in our department between December, 2014 and September, 2015. We divided these patients according to their BMI in overweight group (BMI of 24-27.9 kg/m, =14), obese group (BMI of 28-31.9 kg/m, =35) and severely obese group (BMI≥32 kg/m, =27). All the patients received treatment with GLP-1RAs (Exenatide or Liraglutide) for 3.0 to 29.0 weeks (mean 8.9 weeks), and their blood glucose, HbA1c and serum lipids were analyzed. For each patient, the fat and muscle masses were analyzed using a human body composition analyzer (JAWON-IOI353, Korea) before and after GLP-1RAs treatment.
RESULTS:
Treatment with GLP-1RAs significantly decreased BMI and visceral adiposity index (VAI) in all the patients in the 3 groups ( < 0.05). The treatment significantly decreased the body weight in the overweight group and obese group by 2.70 kg (0.60-4.95 kg) and 2.65 kg (1.45-6.40 kg), respectively ( < 0.05), and significantly decreased the waist-to-hip ratio (WHR) in the overweight group ( < 0.05). The obese and severely obese patients showed significantly decreased percentage body fat (including both subcutaneous and visceral fat) and increased muscle mass after the treatment ( < 0.05). Compared with those in the overweight group, the percentage body fat and VAI were significantly decreased in the obese group after the treatment ( < 0.05), and the percentage of subcutaneous fat reduced and the muscle ratio increased more obviously in the obese and severely obese patients ( < 0.05).
CONCLUSIONS
GLP-1RAs treatment can significantly lower BMI and improve body fat distribution in obese patients with T2DM, especially in patients with a greater BMI.
Adipose Tissue
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Body Mass Index
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Diabetes Mellitus, Type 2
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Glucagon-Like Peptide-1 Receptor
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Humans
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Hypoglycemic Agents
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Obesity
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Overweight
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Retrospective Studies
7.Expressions of inflammatory and fibrogenic factors in perinephric and subcutaneous adipose tissues of patients with adrenocorticotropic hormone-independent Cushing's syndrome
Chunyan WU ; Huijian ZHANG ; Cunxia FAN ; Peng WU ; Qiang WEI ; Yingying CAI ; Shaozhou ZHOU ; Ling WANG ; Yaoming XUE ; Meiping GUAN
Journal of Southern Medical University 2017;37(4):563-566
Objective To investigate the expressions of inflammation- and fibrosis-related genes in perinephric and subcutaneous adipose tissues in patients with adrenocorticotropic hormone (ACTH)-independent Cushing's syndrome. Methods The perinephric and subcutaneous adipose tissues adipose tissues were obtained from 8 patients with ACTH-independent Cushing's syndrome undergoing laparoscopic retroperitoneal adrenalectomy. Real-time PCR was used to detect the mRNA expression levels of interleukin 6 (IL-6), tumor necrosis factor-α (TNF-α), matrix metallopeptidase 2 (MMP-2), TIMP metallopeptidase inhibitor 1 (TIMP-1), early growth response 1 (EGR1), CCAAT/enhancer binding protein β(CEBPβ), uncoupling protein 1(UCP-1), PPARγ coactivator 1 alpha (PGC1α) and cell death-inducing DFFA-like effector a (CIDEA). Results The mRNA level of CIDEA was significantly higher in the perinephric adipose tissue (peri-N) than in the subcutaneous adipose tissue (subQ) (P<0.05). The expressions of CEBPβ, UCP-1, and PGC1αmRNA in the peri-N were similar with those in the subQ. The expressions of IL-6, TIMP1 and EGR1 mRNA in the subQ were significantly higher than those in the peri-N (P<0.05). No significant difference in TNF-α and MMP-2 mRNA levels was found between peri-N and subQ. Conclusion The expression levels of the inflammation-and fibrosis-related genes are higher in the subQ than in the peri-N of patients with ACTH-independent Cushing's syndrome, suggesting that chronic exposure to endogenous hypercortisolism may cause adipose tissue dysfunction.
8.Expressions of inflammatory and fibrogenic factors in perinephric and subcutaneous adipose tissues of patients with adrenocorticotropic hormone-independent Cushing's syndrome
Chunyan WU ; Huijian ZHANG ; Cunxia FAN ; Peng WU ; Qiang WEI ; Yingying CAI ; Shaozhou ZHOU ; Ling WANG ; Yaoming XUE ; Meiping GUAN
Journal of Southern Medical University 2017;37(4):563-566
Objective To investigate the expressions of inflammation- and fibrosis-related genes in perinephric and subcutaneous adipose tissues in patients with adrenocorticotropic hormone (ACTH)-independent Cushing's syndrome. Methods The perinephric and subcutaneous adipose tissues adipose tissues were obtained from 8 patients with ACTH-independent Cushing's syndrome undergoing laparoscopic retroperitoneal adrenalectomy. Real-time PCR was used to detect the mRNA expression levels of interleukin 6 (IL-6), tumor necrosis factor-α (TNF-α), matrix metallopeptidase 2 (MMP-2), TIMP metallopeptidase inhibitor 1 (TIMP-1), early growth response 1 (EGR1), CCAAT/enhancer binding protein β(CEBPβ), uncoupling protein 1(UCP-1), PPARγ coactivator 1 alpha (PGC1α) and cell death-inducing DFFA-like effector a (CIDEA). Results The mRNA level of CIDEA was significantly higher in the perinephric adipose tissue (peri-N) than in the subcutaneous adipose tissue (subQ) (P<0.05). The expressions of CEBPβ, UCP-1, and PGC1αmRNA in the peri-N were similar with those in the subQ. The expressions of IL-6, TIMP1 and EGR1 mRNA in the subQ were significantly higher than those in the peri-N (P<0.05). No significant difference in TNF-α and MMP-2 mRNA levels was found between peri-N and subQ. Conclusion The expression levels of the inflammation-and fibrosis-related genes are higher in the subQ than in the peri-N of patients with ACTH-independent Cushing's syndrome, suggesting that chronic exposure to endogenous hypercortisolism may cause adipose tissue dysfunction.
9.Effect of DPP4 inhibitor sitagliptin on expressions of early growth response-1 and fibronectin in the kidney of ApoE gene knockout mice.
Wenqi LI ; Meiping GUAN ; Zongji ZHENG ; Yaoming XUE
Journal of Southern Medical University 2016;36(1):126-130
OBJECTIVETo investigate the effects of the DPP4 inhibitor sitagliptin on the expressions of early growth response-1 (Egr-1) and fibronectin in the kidney of ApoE gene knockout mice.
METHODSEight-week-old male ApoE gene knockout mice were randomly divided into sitagliptin + apoE(-/-) group and apoE(-/-) group (n=6), with 6 C57BL mice as the normal control group. After feeding with high-fat diet and drug treatment for 16 weeks, the mice underwent intraperitoneal glucose tolerance test (IPGTT) and were measured for 24-h urinary albumin using ELISA. All the mice were then sacrificed to examine the changes of blood lipid profile and for detection of Egr-1 and fibronectin mRNA and proteins in the renal tissue using real-time PCR and Western blotting.
RESULTSThe mice in both apoE(-/-) group and sitagliptin+apoE(-/-) group all showed prominently increased blood lipids as compared with the control group (P<0.05) without significant differences between the two apoE(-/-) groups. The level of HDL was significantly higher in sitagliptin +apoE(-/-) group than in apoE(-/-) group (P<0.001) and control group (P<0.001). IPGTT showed no significant differences in the levels of blood glucose among the 3 groups. The excretion of urinary albumin was increased in apoE(-/-) group compared with the control group (P<0.01), but was significantly lower in sitagliptin+ apoE(-/-) group than in apoE(-/-) group (P<0.01). Real-time PCR and Western blotting showed significantly decreased mRNA and protein expressions of renal cortical Egr-1 and fibronectin in sitagliptin+apoE(-/-) group compared with apoE(-/-) group.
CONCLUSIONSitagliptin can reduce the renal expression of fibronectin by regulating the expression of Egr-1 to achieve renal protection.
Animals ; Apolipoproteins E ; genetics ; Diet, High-Fat ; Dipeptidyl-Peptidase IV Inhibitors ; pharmacology ; Early Growth Response Protein 1 ; metabolism ; Fibronectins ; metabolism ; Gene Knockout Techniques ; Kidney ; metabolism ; Lipids ; blood ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Real-Time Polymerase Chain Reaction ; Sitagliptin Phosphate ; pharmacology
10.Effects of metformin on apoptosis induced by advanced glycation end-products and expressions of caspase-3, Bax and Bcl-2 in human dermal fibroblasts in vitro.
Ruoyu PANG ; Meiping GUAN ; Zongji ZHENG ; Yaoming XUE
Journal of Southern Medical University 2015;35(6):898-902
OBJECTIVETo investigate the effect of metformin in protecting against advanced glycation end products (AGEs)-induced apoptosis in human primary dermal fibroblasts.
METHODSFibroblasts were exposed to 100, 200, or 300 µg/mL AGEs, 300 µg/mL bovine serum albumin (BSA), or 300 µg/mL AGEs and 1 mmol/L metformin for 24, 48, or 72 h. The exposed cells were examined for cell apoptosis using a cell counting kit. The expressions of caspase-3, Bax and Bcl-2 protein in the fibroblasts treated for 72 h were detected with Western blotting.
RESULTSAGEs exposures caused significant dose- and time-dependent apoptosis in the fibroblasts. A 72-h exposure to 300 µg/mL AGEs resulted in obviously increased apoptosis of the fibroblasts compared to the control group (0.72 ± 0.02 vs 1 ± 0.04, P<0.05), and metformin significantly decreased AGEs-induced apoptosis (0.98 ± 0.02 vs 0.72 ± 0.02, P<0.05). The expressions of caspase-3 and Bax protein were significantly increased (P<0.05) and Bcl-2 protein expression was decreased (P<0.05) with a lowered Bcl-2/Bax ratio in AGEs-treated fibroblasts (P<0.05), and such changes were significantly reversed by metformin treatment (P<0.05).
CONCLUSIONMetformin can antagonize AGEs-induced apoptosis in human dermal fibroblasts by regulating the expressions of caspase-3, Bax and Bcl-2.
Apoptosis ; drug effects ; Caspase 3 ; metabolism ; Cells, Cultured ; Dermis ; cytology ; Fibroblasts ; cytology ; drug effects ; Glycation End Products, Advanced ; adverse effects ; Humans ; Metformin ; pharmacology ; Proto-Oncogene Proteins c-bcl-2 ; metabolism ; bcl-2-Associated X Protein ; metabolism

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