1.An animal model of severe acute respiratory distress syndrome for translational research
Kuo‑An CHU ; Chia‑Yu LAI ; Yu‑Hui CHEN ; Fu‑Hsien KUO ; I.‑Yuan CHEN ; You‑Cheng JIANG ; Ya‑Ling LIU ; Tsui‑Ling KO ; Yu‑Show FU
Laboratory Animal Research 2025;41(1):81-92
Background:
Despite the fact that an increasing number of studies have focused on developing therapies for acute lung injury, managing acute respiratory distress syndrome (ARDS) remains a challenge in intensive care medicine.Whether the pathology of animal models with acute lung injury in prior studies differed from clinical symptoms of ARDS, resulting in questionable management for human ARDS. To evaluate precisely the therapeutic effect of trans‑ planted stem cells or medications on acute lung injury, we developed an animal model of severe ARDS with lower lung function, capable of keeping the experimental animals survive with consistent reproducibility. Establishing this animal model could help develop the treatment of ARDS with higher efficiency.
Results:
In this approach, we intratracheally delivered bleomycin (BLM, 5 mg/rat) into rats’ left trachea via a needle connected with polyethylene tube, and simultaneously rotated the rats to the left side by 60 degrees. Within sevendays after the injury, we found that arterial blood oxygen saturation (SpO2 ) significantly decreased to 83.7%, partial pressure of arterial oxygen (PaO2 ) markedly reduced to 65.3 mmHg, partial pressure of arterial carbon dioxide (PaCO2 )amplified to 49.2 mmHg, and the respiratory rate increased over time. Morphologically, the surface of the left lung appeared uneven on Day 1, the alveoli of the left lung disappeared on Day 2, and the left lung shrank on Day 7. A his‑ tological examination revealed that considerable cell infiltration began on Day 1 and lasted until Day 7, with a larger area of cell infiltration. Serum levels of IL-5, IL-6, IFN-γ, MCP-1, MIP-2, G-CSF, and TNF-α substantially rose on Day 7.
Conclusions
This modified approach for BLM-induced lung injury provided a severe, stable, and one-sided (left-lobe) ARDS animal model with consistent reproducibility. The physiological symptoms observed in this severe ARDS animal model are entirely consistent with the characteristics of clinical ARDS. The establishment of this ARDS animal model could help develop treatment for ARDS.
2.An animal model of severe acute respiratory distress syndrome for translational research
Kuo‑An CHU ; Chia‑Yu LAI ; Yu‑Hui CHEN ; Fu‑Hsien KUO ; I.‑Yuan CHEN ; You‑Cheng JIANG ; Ya‑Ling LIU ; Tsui‑Ling KO ; Yu‑Show FU
Laboratory Animal Research 2025;41(1):81-92
Background:
Despite the fact that an increasing number of studies have focused on developing therapies for acute lung injury, managing acute respiratory distress syndrome (ARDS) remains a challenge in intensive care medicine.Whether the pathology of animal models with acute lung injury in prior studies differed from clinical symptoms of ARDS, resulting in questionable management for human ARDS. To evaluate precisely the therapeutic effect of trans‑ planted stem cells or medications on acute lung injury, we developed an animal model of severe ARDS with lower lung function, capable of keeping the experimental animals survive with consistent reproducibility. Establishing this animal model could help develop the treatment of ARDS with higher efficiency.
Results:
In this approach, we intratracheally delivered bleomycin (BLM, 5 mg/rat) into rats’ left trachea via a needle connected with polyethylene tube, and simultaneously rotated the rats to the left side by 60 degrees. Within sevendays after the injury, we found that arterial blood oxygen saturation (SpO2 ) significantly decreased to 83.7%, partial pressure of arterial oxygen (PaO2 ) markedly reduced to 65.3 mmHg, partial pressure of arterial carbon dioxide (PaCO2 )amplified to 49.2 mmHg, and the respiratory rate increased over time. Morphologically, the surface of the left lung appeared uneven on Day 1, the alveoli of the left lung disappeared on Day 2, and the left lung shrank on Day 7. A his‑ tological examination revealed that considerable cell infiltration began on Day 1 and lasted until Day 7, with a larger area of cell infiltration. Serum levels of IL-5, IL-6, IFN-γ, MCP-1, MIP-2, G-CSF, and TNF-α substantially rose on Day 7.
Conclusions
This modified approach for BLM-induced lung injury provided a severe, stable, and one-sided (left-lobe) ARDS animal model with consistent reproducibility. The physiological symptoms observed in this severe ARDS animal model are entirely consistent with the characteristics of clinical ARDS. The establishment of this ARDS animal model could help develop treatment for ARDS.
3.An animal model of severe acute respiratory distress syndrome for translational research
Kuo‑An CHU ; Chia‑Yu LAI ; Yu‑Hui CHEN ; Fu‑Hsien KUO ; I.‑Yuan CHEN ; You‑Cheng JIANG ; Ya‑Ling LIU ; Tsui‑Ling KO ; Yu‑Show FU
Laboratory Animal Research 2025;41(1):81-92
Background:
Despite the fact that an increasing number of studies have focused on developing therapies for acute lung injury, managing acute respiratory distress syndrome (ARDS) remains a challenge in intensive care medicine.Whether the pathology of animal models with acute lung injury in prior studies differed from clinical symptoms of ARDS, resulting in questionable management for human ARDS. To evaluate precisely the therapeutic effect of trans‑ planted stem cells or medications on acute lung injury, we developed an animal model of severe ARDS with lower lung function, capable of keeping the experimental animals survive with consistent reproducibility. Establishing this animal model could help develop the treatment of ARDS with higher efficiency.
Results:
In this approach, we intratracheally delivered bleomycin (BLM, 5 mg/rat) into rats’ left trachea via a needle connected with polyethylene tube, and simultaneously rotated the rats to the left side by 60 degrees. Within sevendays after the injury, we found that arterial blood oxygen saturation (SpO2 ) significantly decreased to 83.7%, partial pressure of arterial oxygen (PaO2 ) markedly reduced to 65.3 mmHg, partial pressure of arterial carbon dioxide (PaCO2 )amplified to 49.2 mmHg, and the respiratory rate increased over time. Morphologically, the surface of the left lung appeared uneven on Day 1, the alveoli of the left lung disappeared on Day 2, and the left lung shrank on Day 7. A his‑ tological examination revealed that considerable cell infiltration began on Day 1 and lasted until Day 7, with a larger area of cell infiltration. Serum levels of IL-5, IL-6, IFN-γ, MCP-1, MIP-2, G-CSF, and TNF-α substantially rose on Day 7.
Conclusions
This modified approach for BLM-induced lung injury provided a severe, stable, and one-sided (left-lobe) ARDS animal model with consistent reproducibility. The physiological symptoms observed in this severe ARDS animal model are entirely consistent with the characteristics of clinical ARDS. The establishment of this ARDS animal model could help develop treatment for ARDS.
4.An animal model of severe acute respiratory distress syndrome for translational research
Kuo‑An CHU ; Chia‑Yu LAI ; Yu‑Hui CHEN ; Fu‑Hsien KUO ; I.‑Yuan CHEN ; You‑Cheng JIANG ; Ya‑Ling LIU ; Tsui‑Ling KO ; Yu‑Show FU
Laboratory Animal Research 2025;41(1):81-92
Background:
Despite the fact that an increasing number of studies have focused on developing therapies for acute lung injury, managing acute respiratory distress syndrome (ARDS) remains a challenge in intensive care medicine.Whether the pathology of animal models with acute lung injury in prior studies differed from clinical symptoms of ARDS, resulting in questionable management for human ARDS. To evaluate precisely the therapeutic effect of trans‑ planted stem cells or medications on acute lung injury, we developed an animal model of severe ARDS with lower lung function, capable of keeping the experimental animals survive with consistent reproducibility. Establishing this animal model could help develop the treatment of ARDS with higher efficiency.
Results:
In this approach, we intratracheally delivered bleomycin (BLM, 5 mg/rat) into rats’ left trachea via a needle connected with polyethylene tube, and simultaneously rotated the rats to the left side by 60 degrees. Within sevendays after the injury, we found that arterial blood oxygen saturation (SpO2 ) significantly decreased to 83.7%, partial pressure of arterial oxygen (PaO2 ) markedly reduced to 65.3 mmHg, partial pressure of arterial carbon dioxide (PaCO2 )amplified to 49.2 mmHg, and the respiratory rate increased over time. Morphologically, the surface of the left lung appeared uneven on Day 1, the alveoli of the left lung disappeared on Day 2, and the left lung shrank on Day 7. A his‑ tological examination revealed that considerable cell infiltration began on Day 1 and lasted until Day 7, with a larger area of cell infiltration. Serum levels of IL-5, IL-6, IFN-γ, MCP-1, MIP-2, G-CSF, and TNF-α substantially rose on Day 7.
Conclusions
This modified approach for BLM-induced lung injury provided a severe, stable, and one-sided (left-lobe) ARDS animal model with consistent reproducibility. The physiological symptoms observed in this severe ARDS animal model are entirely consistent with the characteristics of clinical ARDS. The establishment of this ARDS animal model could help develop treatment for ARDS.
5.An animal model of severe acute respiratory distress syndrome for translational research
Kuo‑An CHU ; Chia‑Yu LAI ; Yu‑Hui CHEN ; Fu‑Hsien KUO ; I.‑Yuan CHEN ; You‑Cheng JIANG ; Ya‑Ling LIU ; Tsui‑Ling KO ; Yu‑Show FU
Laboratory Animal Research 2025;41(1):81-92
Background:
Despite the fact that an increasing number of studies have focused on developing therapies for acute lung injury, managing acute respiratory distress syndrome (ARDS) remains a challenge in intensive care medicine.Whether the pathology of animal models with acute lung injury in prior studies differed from clinical symptoms of ARDS, resulting in questionable management for human ARDS. To evaluate precisely the therapeutic effect of trans‑ planted stem cells or medications on acute lung injury, we developed an animal model of severe ARDS with lower lung function, capable of keeping the experimental animals survive with consistent reproducibility. Establishing this animal model could help develop the treatment of ARDS with higher efficiency.
Results:
In this approach, we intratracheally delivered bleomycin (BLM, 5 mg/rat) into rats’ left trachea via a needle connected with polyethylene tube, and simultaneously rotated the rats to the left side by 60 degrees. Within sevendays after the injury, we found that arterial blood oxygen saturation (SpO2 ) significantly decreased to 83.7%, partial pressure of arterial oxygen (PaO2 ) markedly reduced to 65.3 mmHg, partial pressure of arterial carbon dioxide (PaCO2 )amplified to 49.2 mmHg, and the respiratory rate increased over time. Morphologically, the surface of the left lung appeared uneven on Day 1, the alveoli of the left lung disappeared on Day 2, and the left lung shrank on Day 7. A his‑ tological examination revealed that considerable cell infiltration began on Day 1 and lasted until Day 7, with a larger area of cell infiltration. Serum levels of IL-5, IL-6, IFN-γ, MCP-1, MIP-2, G-CSF, and TNF-α substantially rose on Day 7.
Conclusions
This modified approach for BLM-induced lung injury provided a severe, stable, and one-sided (left-lobe) ARDS animal model with consistent reproducibility. The physiological symptoms observed in this severe ARDS animal model are entirely consistent with the characteristics of clinical ARDS. The establishment of this ARDS animal model could help develop treatment for ARDS.
6.Treatment of multi-finger degloved defects with 7 free flaps from a leg: a case report
Chengwei GE ; You LI ; Guodong JIANG ; Linfeng TANG ; Junnan CHENG ; Song YUAN ; Jihui JU
Chinese Journal of Microsurgery 2025;48(4):469-472
In January 2023, a patient with soft tissue degloving defect of right index, middle, ring and little fingers was treated in the Department of Hand Surgery, Suzhou Ruihua Orthopaedic Hospital. Seven free flaps from a leg were harvested to reconstruct the defected wound of fingers in primary surgery. Flap thinning and plastic surgery were performed in stage-II surgery. Over the 22 months of postoperative follow-up, the flaps in right index, middle, ring and little fingers survived well with the colour and texture close to proximal skin. There was no obvious swelling of the flaps and sensation of the flaps recovered to S 3. The donor sites healed well and the donor leg walked normally.
7.Effects of emotion regulation ability on inhibitory control in patients with alcohol use disorder
Fei CHENG ; Tianzhen CHEN ; Xu YOU ; Baoshuang XUE ; Yunbin YANG ; Jiang DU
Journal of Shanghai Jiaotong University(Medical Science) 2025;45(7):883-891
Objective·To investigate the performance and psychological mechanisms of inhibitory control in patients with alcohol use disorder(AUD)under different emotional contexts,and to examine the influence of emotion regulation difficulties on inhibitory control.Methods·A total of 28 male AUD inpatients(AUD group)and 28 age-and education-matched healthy controls(HC group)were recruited.The emotional Go/Nogo task(angry/neutral facial expressions)was used to evaluate the subjects'behavioral inhibition,and the hierarchical drift-diffusion model(HDDM)was used to quantify the cognitive parameters(drift rate,decision threshold,and non-decision time).The Difficulties in Emotion Regulation Scale(DERS)and Alcohol Use Disorder Identification Test(AUDIT)were used for clinical evaluation.The moderated mediation effects were tested by bootstrap method.Results·The AUD group scored higher than the HC group on the DERS total score and all sub-dimensions(goal-directed behavior,impulse control,strategy access,and emotional clarity),and the difference was statistically significant(all P<0.05).At the behavioral level,compared with the HC group,the AUD group had elevated commission error rates[F(1,54)=8.62,P=0.005]and omission error rates[F(1,54)=4.28,P=0.043],and the reaction time of angry face stimuli was generally prolonged[F(1,54)=12.26,P=0.001].Cognitive modeling showed that the drift rate of the AUD group was significantly lower than that of the HC group[F(1,54)=15.56,P<0.001],indicating impaired information processing efficiency.The moderated mediation model showed that,under the condition of angry face stimuli,the drift rate partially mediated the relationship between group and commission error rate,and the total indirect effect value was 9.564(95%CI 3.874?16.387).Further analysis showed that the conditional indirect effect increased to 10.133(95%CI 3.963?17.927)at high levels of emotion regulation difficulty(one standard deviation above the mean),and to 9.011(95%CI 3.778?14.921)at low levels(one standard deviation below the mean).Conclusion·The deficits in information processing efficiency of AUD patients partly explains the impairment of inhibitory control,and this effect is associated with individual emotion regulation capacity.It is suggested that abnormal processing of social threat information may be an important factor affecting the impairment of inhibitory control in AUD patients,especially in individuals with weak emotion regulation ability.
8.Effects of emotion regulation ability on inhibitory control in patients with alcohol use disorder
Fei CHENG ; Tianzhen CHEN ; Xu YOU ; Baoshuang XUE ; Yunbin YANG ; Jiang DU
Journal of Shanghai Jiaotong University(Medical Science) 2025;45(7):883-891
Objective·To investigate the performance and psychological mechanisms of inhibitory control in patients with alcohol use disorder(AUD)under different emotional contexts,and to examine the influence of emotion regulation difficulties on inhibitory control.Methods·A total of 28 male AUD inpatients(AUD group)and 28 age-and education-matched healthy controls(HC group)were recruited.The emotional Go/Nogo task(angry/neutral facial expressions)was used to evaluate the subjects'behavioral inhibition,and the hierarchical drift-diffusion model(HDDM)was used to quantify the cognitive parameters(drift rate,decision threshold,and non-decision time).The Difficulties in Emotion Regulation Scale(DERS)and Alcohol Use Disorder Identification Test(AUDIT)were used for clinical evaluation.The moderated mediation effects were tested by bootstrap method.Results·The AUD group scored higher than the HC group on the DERS total score and all sub-dimensions(goal-directed behavior,impulse control,strategy access,and emotional clarity),and the difference was statistically significant(all P<0.05).At the behavioral level,compared with the HC group,the AUD group had elevated commission error rates[F(1,54)=8.62,P=0.005]and omission error rates[F(1,54)=4.28,P=0.043],and the reaction time of angry face stimuli was generally prolonged[F(1,54)=12.26,P=0.001].Cognitive modeling showed that the drift rate of the AUD group was significantly lower than that of the HC group[F(1,54)=15.56,P<0.001],indicating impaired information processing efficiency.The moderated mediation model showed that,under the condition of angry face stimuli,the drift rate partially mediated the relationship between group and commission error rate,and the total indirect effect value was 9.564(95%CI 3.874?16.387).Further analysis showed that the conditional indirect effect increased to 10.133(95%CI 3.963?17.927)at high levels of emotion regulation difficulty(one standard deviation above the mean),and to 9.011(95%CI 3.778?14.921)at low levels(one standard deviation below the mean).Conclusion·The deficits in information processing efficiency of AUD patients partly explains the impairment of inhibitory control,and this effect is associated with individual emotion regulation capacity.It is suggested that abnormal processing of social threat information may be an important factor affecting the impairment of inhibitory control in AUD patients,especially in individuals with weak emotion regulation ability.
9.Treatment of multi-finger degloved defects with 7 free flaps from a leg: a case report
Chengwei GE ; You LI ; Guodong JIANG ; Linfeng TANG ; Junnan CHENG ; Song YUAN ; Jihui JU
Chinese Journal of Microsurgery 2025;48(4):469-472
In January 2023, a patient with soft tissue degloving defect of right index, middle, ring and little fingers was treated in the Department of Hand Surgery, Suzhou Ruihua Orthopaedic Hospital. Seven free flaps from a leg were harvested to reconstruct the defected wound of fingers in primary surgery. Flap thinning and plastic surgery were performed in stage-II surgery. Over the 22 months of postoperative follow-up, the flaps in right index, middle, ring and little fingers survived well with the colour and texture close to proximal skin. There was no obvious swelling of the flaps and sensation of the flaps recovered to S 3. The donor sites healed well and the donor leg walked normally.
10.The predictive value of the ALBI score for the postoperative prognosis of distal cholangiocarcinoma after radical surgery
Feng XU ; Jin-Can HUANG ; You-Wei MA ; Shao-Cheng LÜ ; Tao JIANG
Parenteral & Enteral Nutrition 2024;31(6):359-363,369
Objective:To evaluate the prognostic value of albumin-bilirubin(ALBI)score in patients with distal cholangiocarcinoma(dCCA)after radical surgery.Methods:This retrospective study analyzed clinical data from 156 patients diagnosed with distal cholangiocarcinoma who underwent surgical treatment at the Department of Hepatobiliary Surgery,Beijing Chaoyang Hospital,affiliated with Capital Medical University,between January 2014 and December 2022.All patients gave informed consent and medical ethics guidelines were followed.The Albumin-Bilirubin(ALBI)score was calculated based on preoperative serum albumin and total bilirubin levels.Patients were then stratified into low ALBI and high ALBI groups using the optimal cut-off value.The study aimed to assess and compare the long-term prognosis of patients in these groups and to identify risk factors that influence their long-term prognosis using univariate and multivariate analyses.Results:Using the optimal ALBI cut-off value,patients were stratified into a low ALBI group(ALBI≤-1.67,92 cases)and a high ALBI group(ALBI>-1.67,64 cases).The median survival time for patients in the low ALBI group was 33 months,while the median survival time for patients in the high ALBI group was 20 months.The overall survival rates at 1 year,3 years,and 5 years postoperatively were 85.4%,43.8%,and 35.8%for the low ALBI group,and 65.5%,23.4%,and 13.6%for the high ALBI group,respectively(χ2=8.882,P=0.003).Results from both univariate and multivariate analyses indicated that high ALBI,CA19-9>37U/ml and lymph node metastasis were independent risk factors of long-term postoperative survival.Conclusion:In patients with distal cholangiocarcinoma,the preoperative ALBI score may be an effective indicator for predicting long-term survival.

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