Background Paraquat （PQ）, an effective and widely used herbicide, has been proven to be safe when appropriately applied to eliminate weeds. However, PQ poisoning is an extremely frustrating clinical condition with a...Background Paraquat （PQ）, an effective and widely used herbicide, has been proven to be safe when appropriately applied to eliminate weeds. However, PQ poisoning is an extremely frustrating clinical condition with a high mortality and with a lack of effective treatments in humans. PQ mainly accumulates in the lung, and the main molecular mechanism of PQ toxicity is based on redox cycling and intracellular oxidative stress generation. The aim of this study was to evaluate whether lysine acetylsalicylate （LAS） could protect the lung from the damage of PQ poisoning and to study the mechanisms of protection. Methods A model of PQ poisoning was established in 75 Sprague-Dawley rats by intragastric administration of 50 mg/kg PQ, followed by treatment with 200 mg/kg of LAS. The rats were randomly divided into sham, PQ, and PQ＋LAS groups, with 25 in each group. We assessed and compared the malonaldehyde （MDA） content, superoxide dismutase activity （SOD）, glutathion peroxidase （GSH-Px）, and catalase （CAT） in serum and lung and the hydroxyproline （HYP） content, pathological changes, apoptosis and expression of Bcl-2/Bax protein in lung of rats on days 1, 3, 7, 14 and 21 after PQ poisoning and LAS treatment. Results Compared to the PQ group rats, early treatment with LAS reduced the MDA and HYP contents, and increased the SOD, GSH-Px, and CAT activities in the serum and lung on days 1, 3, 7, 14, and 21 after PQ poisoning （all P〈0.05）. After early LAS treatment, the apoptotic rate and Bax expression of lung decreased, the Bcl-2 expression increased, and the Bcl-2/Bax ratio increased, compared to the PQ group rats. Furthermore, the pathological results of lungs revealed that after LAS treatment, early manifestations of PQ poisoning, such as hemorrhage, edema and inflammatory-cell infiltration, were improved to some degree, and collagen fibers in the pulmonary interstitium were also obviously reduced. Conclusion In this rat model of PQ poisoning, LAS effectively ameliorated the lung injury i展开更多
Objective: To investigate the potential and early effect of hypertonic saline resuscitation on T-lymphocyte sub- populations in rats with hemorrhagic shock. Methods: A model of rat with severe hemorrhagic shock was es...Objective: To investigate the potential and early effect of hypertonic saline resuscitation on T-lymphocyte sub- populations in rats with hemorrhagic shock. Methods: A model of rat with severe hemorrhagic shock was established in 18 Sprague-Dawley (SD) rats. The rats were randomly divided into Sham group, HTS group (hypertonic saline resuscitation group) and NS group (normal saline resuscitation group). Each group contained 6 rats. The CD4+ and CD8+ subpopulations of T-lymphocytes in peripheral blood were detected respectively before shock and after resuscitation by double antibody labelling and flow cytometry. Results: In the early stage after hemorrhagic shock, fluid resuscitation and emergency treatment, the CD4+ lymphocytes of peripheral blood in HTS and NS groups markedly increased. Small volume resuscitation with HTS also induced peripheral CD8+ lymphocytes to a certain extent, whereas NS resuscitation showed no effect in this respect. Consequently, compared with Sham and HTS groups, CD4+/CD8+ ratio of peripheral blood in NS group was obviously increased, and showed statistically differences. Conclusion: In this model of rat with severe hemorrhagic shock, small volume resuscitation with HTS is more effective than NS in reducing immunologic disorders and promoting a more balanced profile of T-lymphocyte subpopula- tions regulating network.展开更多
Background Hemorrhagic shock induces immune dysfunction. Regulatory T cells （Tregs）, T-helper （Th） cells, and cytotoxic T-lymphocytes （CTLs） can execute many crucial actions in immune and inflammatory responses....Background Hemorrhagic shock induces immune dysfunction. Regulatory T cells （Tregs）, T-helper （Th） cells, and cytotoxic T-lymphocytes （CTLs） can execute many crucial actions in immune and inflammatory responses. This study was conducted to investigate the early pathophysiological changes of CD4＋CD25＋Foxp3＋ Treg and Th1/Th2, Tc1/Tc2 profiles in the peripheral blood of rats with controlled hemorrhagic shock and no fluid resuscitation. Methods A rat model of controlled hemorrhagic shock with no fluid resuscitation was established. Peripheral blood samples were taken before and four hours after hemorrhagic shock with no fluid resuscitation. Three color flow cytometry was used to detect Tregs, Thl, Th2, Tcl and Tc2 ceils in the samples. Results In the peripheral blood of rats, the percentage of Tregs four hours after hemorrhagic shock was significantly lower than before hemorrhagic shock （P=0.001）. The ratios of Th1/Th2 and Tc1/Tc2 were changed from （23.08±8.98）% to （23.91±15.36）%, and from （40.40±21.56）% to （65.48±23.88）%, respectively. Conclusions At an early stage, the advent of hemorrhagic shock is related to an early decrease of Tregs, and a mild shift in the Th1/Th2, Tc1/Tc2 balance toward Thl and Tcl dominance. These changes are part of a hyper-inflammatory state of the host, and will deteriorate the maintenance of immune balance. Further influences and detailed mechanisms need to be investigated.展开更多
Hemorrhagic shock is a common clinical emergency case. Successful treatment is usually accomplished by surgical control of hemorrhage and restoration of tissue perfusion. The fluid resuscitation method in the presurgi...Hemorrhagic shock is a common clinical emergency case. Successful treatment is usually accomplished by surgical control of hemorrhage and restoration of tissue perfusion. The fluid resuscitation method in the presurgical care of the hypotensive trauma patients is controversial. Current guidelines for presurgical treatment of patients with hemorrhagic shock recommend rapid volume resuscitation to normal blood pressure as quickly as possible.展开更多
Background Hemorrhagic shock is usually associated with complicated immune and inflammatory responses, which are sometimes crucial for the prognosis. As regulators of the immune and inflammatory system; proliferation,...Background Hemorrhagic shock is usually associated with complicated immune and inflammatory responses, which are sometimes crucial for the prognosis. As regulators of the immune and inflammatory system; proliferation, migration, distribution and activation of myeloid-derived suppressor cells （MDSCs） are intimately linked to the inflammation cascade. Methods In a model of severe hemorrhagic shock, thirty-five rats were randomly divided into control, sham, normal saline resuscitation （NS）, hypertonic saline resuscitation （HTS）, and hydroxyethyl starch resuscitation （HES）, with seven in each group. MDSCs were analyzed by flow cytometric staining of CD11b/c＊Gra~ in peripheral blood mononuclear cells （PBMC）, spleen cell suspensions, and bone marrow nucleated cells （BMNC）. Simultaneously, the expressions of arginase-1 （ARG-1） and inducible nitric oxide synthase （iNOS） mRNA in MDSCs were evaluated by quantitative reverse transcription-polymerase chain reaction （qRT-PCR）. Results In the early stage after hemorrhagic shock, fluid resuscitation and emergency treatment, the MDSCs in the PBMC of NS, HTS and HES groups markedly increased, and MDSCs in BMNC of these groups decreased accordingly, significantly different to the control group. In hemorrhagic shock rats infused with HTS at the early resuscitation stage, MDSCs in PBMC increased about 2 and 4 folds, and MDSCs in BMNC decreased about 1.3 and 1.6 folds, as compared to the sham group respectively, with statistically significant difference. Furthermore, compared to the NS and HES groups, the MDSCs in PBMC of HTS group increased 1.6 and 1.8 folds with statistically significant differences; the MDSCs decrease in BMNC was not significant. However, there was no statistically significant difference in MDSCs of spleen among the five groups. In addition, compared to the control, sham, NS and HES groups, the ARG-1 and iNOS mRNA of MDSCs in PBMC, spleen and BMNC in the HTS group had the highest level of expression, but no statistically signi展开更多
Background Massive blood loss due to trauma is the leading cause of death in trauma patients and military combatants. The fluid category of resuscitation for hypotensive trauma patients is open to debate. This study w...Background Massive blood loss due to trauma is the leading cause of death in trauma patients and military combatants. The fluid category of resuscitation for hypotensive trauma patients is open to debate. This study was conducted to investigate the early effects of hypertonic and isotonic saline solutions on heme oxygenase-1 （HO-1） mRNA expression and apoptosis in the intestinal mucosa of rats with hemorrhagic shock. Methods A model of severe hemorrhagic shock was established in 21 Sprague-Dawley rats. The rats were randomly divided into sham, normal saline resuscitation （NS）, and hypertonic saline resuscitation （HTS） groups, with 7 in each group. We assessed and compared the HO-1 mRNA expression and apoptosis in the small intestinal mucosa of rats after hemorrhagic shock and resuscitation using the SYBR Green I fluorescence quantitative reverse transcriptase polymerase chain reaction, fluorescein-iso-thiocyanate-annexin V/propidium iodide double staining, and flow cytometry. Results In the early stage of hemorrhagic shock and resuscitation, marked apoptosis occurred in the small intestinal mucosa from both the NS and HTS groups. The apoptotic rate in the NS group was higher than that in the HTS group （P 〈0.01）. Among the three groups, HO-1 mRNA mucosa from the HTS group had the highest level of expression; however, the differences were not significant. There was a significant negative correlation between HO-1 mRNA expression and apoptosis in the small intestinal mucosa from the NS and HTS groups after hemorrhagic shock and resuscitation. Conclusions In this rat model of severe hemorrhagic shock, HTS resuscitation with a small volume is more effective than NS resuscitation in reducing apoptosis of the intestinal mucosa. Further, HO-1 mRNA over-expression in the intestinal mucosa may be one of the molecular mechanisms of HTS in the resuscitation of hemorrhagic shock.展开更多
Objective： JAK2 V617F, MPL W515L and JAK2 exon 12 mutations are novel acquired mutations that induce constitutive cytokine-independent activation of the JAK-STAT pathway in myeloproliferative disorders （MPD）. The d...Objective： JAK2 V617F, MPL W515L and JAK2 exon 12 mutations are novel acquired mutations that induce constitutive cytokine-independent activation of the JAK-STAT pathway in myeloproliferative disorders （MPD）. The discovery of these mutations provides novel mechanism for activation of signal transduction in hematopoietic malignancies. This research was to investigate their prevalence in Chinese patients with primary myelofibrosis （PMF）. Methods： We introduced allele-specific PCR （AS-PCR） combined with sequence analysis to simultaneously screen JAK2 V617F, MPL W515L and JAK2 exon 12 mutations in 30 patients with PMF. Results： Fifteen PMF patients （50.0%） carried JAK2 V617F mutation, and only two JAK2 V617F-negative patients （6.7%） harbored MPL W515L mutation. None had JAK2 exon 12 mutations. Furthermore, these three mutations were not detected in 50 healthy controls. Conclusion： MPL W515L and JAK2 V617F mutations existed in PMF patients but JAK2 exon 12 mutations not. JAK2 V617F and MPL W515L and mutations might contribute to the primary molecular pathogenesis in patients with PMF.展开更多
BACKGROUND Acute generalized exanthematous pustulosis(AGEP)is a severe cutaneous adverse reaction characterized by sterile pustules on erythematous skin associated with fever and leukocytosis.The annual incidence of A...BACKGROUND Acute generalized exanthematous pustulosis(AGEP)is a severe cutaneous adverse reaction characterized by sterile pustules on erythematous skin associated with fever and leukocytosis.The annual incidence of AGEP is estimated to be 1-5 cases per million.Cases of AGEP with oral mucosa involvement have been reported.However,reports of AGEP involving airway mucosa are limited.CASE SUMMARY We report a 42-year-old woman with serious AGEP involving the airway mucosa.The patient initially developed fever and a small rash on her forehead and face.Over the next 2 d,she developed a diffuse,pustular rash over her trunk and legs.In addition,she complained of a cough with white foam-like sputum,chest tightness and dyspnea.Four days later,due to dyspnea,her mental status started to gradually deteriorate.She became more and more drowsy.Biopsies of the skin and airway mucosa suggested the diagnosis of AGEP.According to the European study of severe cutaneous adverse reactions group’s scoring system,the patient scored+6 indicating a probable diagnosis of AGEP.She received intravenous methylprednisolone 120 mg/12 h for 3 d,and was eventually discharged in good condition.This patient had already experienced respiratory failure and airway mucosa involvement on admission;however,the clinicians had an insufficient understanding of AGEP.Glucocorticoid was administered for more than 10 d following onset of the disease,and her overall prognosis was satisfactory.CONCLUSION This case represents a rare clinical feature of AGEP and an important finding for clinicians.展开更多
Background: DNA banking is increasingly applied to collect genetic materials for biomedical studies. Traditionally, the source of DNA banking is from the anti-coagulated blood samples as it is easy to isolate cells fr...Background: DNA banking is increasingly applied to collect genetic materials for biomedical studies. Traditionally, the source of DNA banking is from the anti-coagulated blood samples as it is easy to isolate cells from the samples for DNA extraction. However, substantial portion of clinical blood samples is coagulated. Because of the difficulty to release blood cells from the clots for DNA extraction, coagulated blood samples are not used for DNA banking. Methods: In this study, we developed a simple procedure for high-throughput DNA extraction from coagulated blood samples for DNA banking. Results: We showed that the extracted DNA is the same as the one extracted from anti-coagulated blood samples as reflected by the size distribution and genetic variants across all coding genes. Conclusions: We developed a simply procedure for high-throughput DNA extraction from coagulated blood cells. Validation results show that the DNA from coagulated blood cells is the same as the DNA from the anti-coagulated blood cells.展开更多
文摘Background Paraquat （PQ）, an effective and widely used herbicide, has been proven to be safe when appropriately applied to eliminate weeds. However, PQ poisoning is an extremely frustrating clinical condition with a high mortality and with a lack of effective treatments in humans. PQ mainly accumulates in the lung, and the main molecular mechanism of PQ toxicity is based on redox cycling and intracellular oxidative stress generation. The aim of this study was to evaluate whether lysine acetylsalicylate （LAS） could protect the lung from the damage of PQ poisoning and to study the mechanisms of protection. Methods A model of PQ poisoning was established in 75 Sprague-Dawley rats by intragastric administration of 50 mg/kg PQ, followed by treatment with 200 mg/kg of LAS. The rats were randomly divided into sham, PQ, and PQ＋LAS groups, with 25 in each group. We assessed and compared the malonaldehyde （MDA） content, superoxide dismutase activity （SOD）, glutathion peroxidase （GSH-Px）, and catalase （CAT） in serum and lung and the hydroxyproline （HYP） content, pathological changes, apoptosis and expression of Bcl-2/Bax protein in lung of rats on days 1, 3, 7, 14 and 21 after PQ poisoning and LAS treatment. Results Compared to the PQ group rats, early treatment with LAS reduced the MDA and HYP contents, and increased the SOD, GSH-Px, and CAT activities in the serum and lung on days 1, 3, 7, 14, and 21 after PQ poisoning （all P〈0.05）. After early LAS treatment, the apoptotic rate and Bax expression of lung decreased, the Bcl-2 expression increased, and the Bcl-2/Bax ratio increased, compared to the PQ group rats. Furthermore, the pathological results of lungs revealed that after LAS treatment, early manifestations of PQ poisoning, such as hemorrhage, edema and inflammatory-cell infiltration, were improved to some degree, and collagen fibers in the pulmonary interstitium were also obviously reduced. Conclusion In this rat model of PQ poisoning, LAS effectively ameliorated the lung injury i
文摘Objective: To investigate the potential and early effect of hypertonic saline resuscitation on T-lymphocyte sub- populations in rats with hemorrhagic shock. Methods: A model of rat with severe hemorrhagic shock was established in 18 Sprague-Dawley (SD) rats. The rats were randomly divided into Sham group, HTS group (hypertonic saline resuscitation group) and NS group (normal saline resuscitation group). Each group contained 6 rats. The CD4+ and CD8+ subpopulations of T-lymphocytes in peripheral blood were detected respectively before shock and after resuscitation by double antibody labelling and flow cytometry. Results: In the early stage after hemorrhagic shock, fluid resuscitation and emergency treatment, the CD4+ lymphocytes of peripheral blood in HTS and NS groups markedly increased. Small volume resuscitation with HTS also induced peripheral CD8+ lymphocytes to a certain extent, whereas NS resuscitation showed no effect in this respect. Consequently, compared with Sham and HTS groups, CD4+/CD8+ ratio of peripheral blood in NS group was obviously increased, and showed statistically differences. Conclusion: In this model of rat with severe hemorrhagic shock, small volume resuscitation with HTS is more effective than NS in reducing immunologic disorders and promoting a more balanced profile of T-lymphocyte subpopula- tions regulating network.
基金This work was supported by a grant from the Medical and Health Science Foundation of Zhejiang Province, China （No. 2009B052）.
文摘Background Hemorrhagic shock induces immune dysfunction. Regulatory T cells （Tregs）, T-helper （Th） cells, and cytotoxic T-lymphocytes （CTLs） can execute many crucial actions in immune and inflammatory responses. This study was conducted to investigate the early pathophysiological changes of CD4＋CD25＋Foxp3＋ Treg and Th1/Th2, Tc1/Tc2 profiles in the peripheral blood of rats with controlled hemorrhagic shock and no fluid resuscitation. Methods A rat model of controlled hemorrhagic shock with no fluid resuscitation was established. Peripheral blood samples were taken before and four hours after hemorrhagic shock with no fluid resuscitation. Three color flow cytometry was used to detect Tregs, Thl, Th2, Tcl and Tc2 ceils in the samples. Results In the peripheral blood of rats, the percentage of Tregs four hours after hemorrhagic shock was significantly lower than before hemorrhagic shock （P=0.001）. The ratios of Th1/Th2 and Tc1/Tc2 were changed from （23.08±8.98）% to （23.91±15.36）%, and from （40.40±21.56）% to （65.48±23.88）%, respectively. Conclusions At an early stage, the advent of hemorrhagic shock is related to an early decrease of Tregs, and a mild shift in the Th1/Th2, Tc1/Tc2 balance toward Thl and Tcl dominance. These changes are part of a hyper-inflammatory state of the host, and will deteriorate the maintenance of immune balance. Further influences and detailed mechanisms need to be investigated.
文摘Hemorrhagic shock is a common clinical emergency case. Successful treatment is usually accomplished by surgical control of hemorrhage and restoration of tissue perfusion. The fluid resuscitation method in the presurgical care of the hypotensive trauma patients is controversial. Current guidelines for presurgical treatment of patients with hemorrhagic shock recommend rapid volume resuscitation to normal blood pressure as quickly as possible.
基金Science Foundation of China （No. 81272075）, Zhejiang Provincial Natural Science Foundation of China （No. Y2100430）, and the Zhejiang Provincial Education and Research Foundation of China （No. Y201019154）.
文摘Background Hemorrhagic shock is usually associated with complicated immune and inflammatory responses, which are sometimes crucial for the prognosis. As regulators of the immune and inflammatory system; proliferation, migration, distribution and activation of myeloid-derived suppressor cells （MDSCs） are intimately linked to the inflammation cascade. Methods In a model of severe hemorrhagic shock, thirty-five rats were randomly divided into control, sham, normal saline resuscitation （NS）, hypertonic saline resuscitation （HTS）, and hydroxyethyl starch resuscitation （HES）, with seven in each group. MDSCs were analyzed by flow cytometric staining of CD11b/c＊Gra~ in peripheral blood mononuclear cells （PBMC）, spleen cell suspensions, and bone marrow nucleated cells （BMNC）. Simultaneously, the expressions of arginase-1 （ARG-1） and inducible nitric oxide synthase （iNOS） mRNA in MDSCs were evaluated by quantitative reverse transcription-polymerase chain reaction （qRT-PCR）. Results In the early stage after hemorrhagic shock, fluid resuscitation and emergency treatment, the MDSCs in the PBMC of NS, HTS and HES groups markedly increased, and MDSCs in BMNC of these groups decreased accordingly, significantly different to the control group. In hemorrhagic shock rats infused with HTS at the early resuscitation stage, MDSCs in PBMC increased about 2 and 4 folds, and MDSCs in BMNC decreased about 1.3 and 1.6 folds, as compared to the sham group respectively, with statistically significant difference. Furthermore, compared to the NS and HES groups, the MDSCs in PBMC of HTS group increased 1.6 and 1.8 folds with statistically significant differences; the MDSCs decrease in BMNC was not significant. However, there was no statistically significant difference in MDSCs of spleen among the five groups. In addition, compared to the control, sham, NS and HES groups, the ARG-1 and iNOS mRNA of MDSCs in PBMC, spleen and BMNC in the HTS group had the highest level of expression, but no statistically signi
文摘Background Massive blood loss due to trauma is the leading cause of death in trauma patients and military combatants. The fluid category of resuscitation for hypotensive trauma patients is open to debate. This study was conducted to investigate the early effects of hypertonic and isotonic saline solutions on heme oxygenase-1 （HO-1） mRNA expression and apoptosis in the intestinal mucosa of rats with hemorrhagic shock. Methods A model of severe hemorrhagic shock was established in 21 Sprague-Dawley rats. The rats were randomly divided into sham, normal saline resuscitation （NS）, and hypertonic saline resuscitation （HTS） groups, with 7 in each group. We assessed and compared the HO-1 mRNA expression and apoptosis in the small intestinal mucosa of rats after hemorrhagic shock and resuscitation using the SYBR Green I fluorescence quantitative reverse transcriptase polymerase chain reaction, fluorescein-iso-thiocyanate-annexin V/propidium iodide double staining, and flow cytometry. Results In the early stage of hemorrhagic shock and resuscitation, marked apoptosis occurred in the small intestinal mucosa from both the NS and HTS groups. The apoptotic rate in the NS group was higher than that in the HTS group （P 〈0.01）. Among the three groups, HO-1 mRNA mucosa from the HTS group had the highest level of expression; however, the differences were not significant. There was a significant negative correlation between HO-1 mRNA expression and apoptosis in the small intestinal mucosa from the NS and HTS groups after hemorrhagic shock and resuscitation. Conclusions In this rat model of severe hemorrhagic shock, HTS resuscitation with a small volume is more effective than NS resuscitation in reducing apoptosis of the intestinal mucosa. Further, HO-1 mRNA over-expression in the intestinal mucosa may be one of the molecular mechanisms of HTS in the resuscitation of hemorrhagic shock.
文摘Objective： JAK2 V617F, MPL W515L and JAK2 exon 12 mutations are novel acquired mutations that induce constitutive cytokine-independent activation of the JAK-STAT pathway in myeloproliferative disorders （MPD）. The discovery of these mutations provides novel mechanism for activation of signal transduction in hematopoietic malignancies. This research was to investigate their prevalence in Chinese patients with primary myelofibrosis （PMF）. Methods： We introduced allele-specific PCR （AS-PCR） combined with sequence analysis to simultaneously screen JAK2 V617F, MPL W515L and JAK2 exon 12 mutations in 30 patients with PMF. Results： Fifteen PMF patients （50.0%） carried JAK2 V617F mutation, and only two JAK2 V617F-negative patients （6.7%） harbored MPL W515L mutation. None had JAK2 exon 12 mutations. Furthermore, these three mutations were not detected in 50 healthy controls. Conclusion： MPL W515L and JAK2 V617F mutations existed in PMF patients but JAK2 exon 12 mutations not. JAK2 V617F and MPL W515L and mutations might contribute to the primary molecular pathogenesis in patients with PMF.
文摘BACKGROUND Acute generalized exanthematous pustulosis(AGEP)is a severe cutaneous adverse reaction characterized by sterile pustules on erythematous skin associated with fever and leukocytosis.The annual incidence of AGEP is estimated to be 1-5 cases per million.Cases of AGEP with oral mucosa involvement have been reported.However,reports of AGEP involving airway mucosa are limited.CASE SUMMARY We report a 42-year-old woman with serious AGEP involving the airway mucosa.The patient initially developed fever and a small rash on her forehead and face.Over the next 2 d,she developed a diffuse,pustular rash over her trunk and legs.In addition,she complained of a cough with white foam-like sputum,chest tightness and dyspnea.Four days later,due to dyspnea,her mental status started to gradually deteriorate.She became more and more drowsy.Biopsies of the skin and airway mucosa suggested the diagnosis of AGEP.According to the European study of severe cutaneous adverse reactions group’s scoring system,the patient scored+6 indicating a probable diagnosis of AGEP.She received intravenous methylprednisolone 120 mg/12 h for 3 d,and was eventually discharged in good condition.This patient had already experienced respiratory failure and airway mucosa involvement on admission;however,the clinicians had an insufficient understanding of AGEP.Glucocorticoid was administered for more than 10 d following onset of the disease,and her overall prognosis was satisfactory.CONCLUSION This case represents a rare clinical feature of AGEP and an important finding for clinicians.
文摘Background: DNA banking is increasingly applied to collect genetic materials for biomedical studies. Traditionally, the source of DNA banking is from the anti-coagulated blood samples as it is easy to isolate cells from the samples for DNA extraction. However, substantial portion of clinical blood samples is coagulated. Because of the difficulty to release blood cells from the clots for DNA extraction, coagulated blood samples are not used for DNA banking. Methods: In this study, we developed a simple procedure for high-throughput DNA extraction from coagulated blood samples for DNA banking. Results: We showed that the extracted DNA is the same as the one extracted from anti-coagulated blood samples as reflected by the size distribution and genetic variants across all coding genes. Conclusions: We developed a simply procedure for high-throughput DNA extraction from coagulated blood cells. Validation results show that the DNA from coagulated blood cells is the same as the DNA from the anti-coagulated blood cells.
