Medicinal leeches have been utilized in therapy for thousands of years. However, the adaptation physiology between leeches and hosts is not fully understand. To disclose the molecular mechanisms of adaptation between ...Medicinal leeches have been utilized in therapy for thousands of years. However, the adaptation physiology between leeches and hosts is not fully understand. To disclose the molecular mechanisms of adaptation between leech and host, the body transcriptomes of hunger and fed blood-sucking Poecilobdella javanica, Haemadipsa cavatuses, and Hirudo nipponia leeches were obtained by RNA sequencing, after comparison, a stratified unigenes group was obtained, which closely correlated to body distension. In the group, Rfamide receptor decreased significantly (P < 0.05) while serotonin receptor increased significantly (P < 0.05). Moreover, four KEGG (Kyoto Encyclopedia of Genes and Genomes) pathways, including cardiac muscle contraction, complement and coagulation cascades, renin-angiotensin system, and hypertrophic cardiomyopathy were significantly enriched. The unigenes annotation, neuroregulators correlation analysis and induced function of the KEGG pathways, were consistently supported the same result as: vasoconstriction and systole reaction enhance in hunger leeches and vice versa vasodilation and diastole increase in fed leeches, meanwhile, Interspecific comparison and correlative analyses of physiological function showed that the strongest reaction of induced heart failure from four KEGG occur in strongest reaction of systole in hungry P. javanica and in strongest reaction of diastole in fed H. nipponia. Overall, heart failure is likely a physiological function involved in feeding behaviour.展开更多
After the developments of modern medicine, leeches were not used as before, but in the late nineteenth century, leeches were still being used in many countries around the world. Until now, leeches have been used to tr...After the developments of modern medicine, leeches were not used as before, but in the late nineteenth century, leeches were still being used in many countries around the world. Until now, leeches have been used to treat a wide range of diseases. The present study, is a scoping review of the evidence of the indication of leech therapy. The results of this study are based on English articles and dissertations published in databases from 2000 up to July 10, 2017. The results showed that leech therapy could be used in different conditions including venous congestion in plastic and reconstructive surgery, osteoarthritis, cardiovascular diseases due to blood coagulation disorders, migraine headache, skin disorders, diabetic foot ulcers, macroglossia, priapism, cancer complications, and wounds. More researches are needed in wider areas with more precise methodologies to ensure the potential therapeutic effects of leech therapy.展开更多
Leeches are invertebrates that have a long history of application in the development of human medicine in both the East and the West.This paper comprehensively analyzes and evaluates current research and the latest pr...Leeches are invertebrates that have a long history of application in the development of human medicine in both the East and the West.This paper comprehensively analyzes and evaluates current research and the latest progress with regard to the application of leeches,their medical value,and their application prospects from various perspectives,so as to provide a reference for new viewpoints and directions for research on leeches.Modern research has revealed that leeches contain various bioactive components,which have pharmacological effects such as anticoagulation,antithrombosis,blood viscosity reduction,and anti-atherosclerosis.Leech therapy is an important treatment approach for venous congestion after microsurgery and is also an effective adjuvant treatment for diabetic feet,chronic pain,and tumors.Therefore,leeches are of importance for the research and development of new drugs,the restoration of blood supply after surgery,and the adjuvant treatment of diseases accompanied by blood blocking.In addition,leeches can also be used as model organisms for research in evolutionary biology and invertebrate neurophysiology as well as in neurophysiological,behavioral,and functional studies.展开更多
Background:Diabetic foot ulcers(DFUs)are common in patients with diabetes.The mortality rate of DFUs is ranked the highest after cancer.With advancements in modern medicine,leech therapy,a traditional treatment method...Background:Diabetic foot ulcers(DFUs)are common in patients with diabetes.The mortality rate of DFUs is ranked the highest after cancer.With advancements in modern medicine,leech therapy,a traditional treatment method for chronic wounds in Iranian medicine,has proven effective in relieving venous congestion.Herein,we aimed to observe the curative effects of leech therapy in combination with honey and curcumin dressing in a 77-year-old patient with a diabetic foot ulcer(UFC).Methods:Two medium-sized medicinal leeches were placed surrounding a grade 2 wound,based on Wagner’s classification system,located on the right first toe.The patient reported a visual analogue scale(VAS)score of 8.After leech therapy,the wound was covered with honey and curcumin,followed by oral administration of ciprofloxacin for 10 days.Results:Pain increased immediately after leech therapy(VAS:9-10)but decreased significantly(VAS:6)2 days after the therapy.At the end of the 2nd day,pain completely disappeared.After 3 weeks,there was no wound on the toe.After 12 weeks,there were no traces of the wound.Conclusion:Leech therapy in combination with honey and curcumin dressing is effective against disease progression in patients with DFUs.展开更多
Dear sir,Iam Dr.Wen-Wei Li,from the Department of Ophthalmology,Zhejiang Provincial People’s Hospital,Hangzhou,China.I write to present a case of ocular leech infestation initially misdiagnosed as conjunctival pigmen...Dear sir,Iam Dr.Wen-Wei Li,from the Department of Ophthalmology,Zhejiang Provincial People’s Hospital,Hangzhou,China.I write to present a case of ocular leech infestation initially misdiagnosed as conjunctival pigmented nevus.Although human interaction with leeches is not展开更多
Leech thinks that people sometimes disobey Grice's Cooperative Principle in order to express themselves politely in interaction.Therefore he postulates the Politeness Principle and believes that it should be obeye...Leech thinks that people sometimes disobey Grice's Cooperative Principle in order to express themselves politely in interaction.Therefore he postulates the Politeness Principle and believes that it should be obeyed in communication.This paper analyzes his PP by using some examples in daily life.展开更多
文摘Medicinal leeches have been utilized in therapy for thousands of years. However, the adaptation physiology between leeches and hosts is not fully understand. To disclose the molecular mechanisms of adaptation between leech and host, the body transcriptomes of hunger and fed blood-sucking Poecilobdella javanica, Haemadipsa cavatuses, and Hirudo nipponia leeches were obtained by RNA sequencing, after comparison, a stratified unigenes group was obtained, which closely correlated to body distension. In the group, Rfamide receptor decreased significantly (P < 0.05) while serotonin receptor increased significantly (P < 0.05). Moreover, four KEGG (Kyoto Encyclopedia of Genes and Genomes) pathways, including cardiac muscle contraction, complement and coagulation cascades, renin-angiotensin system, and hypertrophic cardiomyopathy were significantly enriched. The unigenes annotation, neuroregulators correlation analysis and induced function of the KEGG pathways, were consistently supported the same result as: vasoconstriction and systole reaction enhance in hunger leeches and vice versa vasodilation and diastole increase in fed leeches, meanwhile, Interspecific comparison and correlative analyses of physiological function showed that the strongest reaction of induced heart failure from four KEGG occur in strongest reaction of systole in hungry P. javanica and in strongest reaction of diastole in fed H. nipponia. Overall, heart failure is likely a physiological function involved in feeding behaviour.
文摘After the developments of modern medicine, leeches were not used as before, but in the late nineteenth century, leeches were still being used in many countries around the world. Until now, leeches have been used to treat a wide range of diseases. The present study, is a scoping review of the evidence of the indication of leech therapy. The results of this study are based on English articles and dissertations published in databases from 2000 up to July 10, 2017. The results showed that leech therapy could be used in different conditions including venous congestion in plastic and reconstructive surgery, osteoarthritis, cardiovascular diseases due to blood coagulation disorders, migraine headache, skin disorders, diabetic foot ulcers, macroglossia, priapism, cancer complications, and wounds. More researches are needed in wider areas with more precise methodologies to ensure the potential therapeutic effects of leech therapy.
基金This study was supported by the Yunnan Innovation Team Training Project,the National Natural Science Foundation(31772542)National Program for Support of Top-notch Young Professionals(W02070188).
文摘Leeches are invertebrates that have a long history of application in the development of human medicine in both the East and the West.This paper comprehensively analyzes and evaluates current research and the latest progress with regard to the application of leeches,their medical value,and their application prospects from various perspectives,so as to provide a reference for new viewpoints and directions for research on leeches.Modern research has revealed that leeches contain various bioactive components,which have pharmacological effects such as anticoagulation,antithrombosis,blood viscosity reduction,and anti-atherosclerosis.Leech therapy is an important treatment approach for venous congestion after microsurgery and is also an effective adjuvant treatment for diabetic feet,chronic pain,and tumors.Therefore,leeches are of importance for the research and development of new drugs,the restoration of blood supply after surgery,and the adjuvant treatment of diseases accompanied by blood blocking.In addition,leeches can also be used as model organisms for research in evolutionary biology and invertebrate neurophysiology as well as in neurophysiological,behavioral,and functional studies.
文摘Background:Diabetic foot ulcers(DFUs)are common in patients with diabetes.The mortality rate of DFUs is ranked the highest after cancer.With advancements in modern medicine,leech therapy,a traditional treatment method for chronic wounds in Iranian medicine,has proven effective in relieving venous congestion.Herein,we aimed to observe the curative effects of leech therapy in combination with honey and curcumin dressing in a 77-year-old patient with a diabetic foot ulcer(UFC).Methods:Two medium-sized medicinal leeches were placed surrounding a grade 2 wound,based on Wagner’s classification system,located on the right first toe.The patient reported a visual analogue scale(VAS)score of 8.After leech therapy,the wound was covered with honey and curcumin,followed by oral administration of ciprofloxacin for 10 days.Results:Pain increased immediately after leech therapy(VAS:9-10)but decreased significantly(VAS:6)2 days after the therapy.At the end of the 2nd day,pain completely disappeared.After 3 weeks,there was no wound on the toe.After 12 weeks,there were no traces of the wound.Conclusion:Leech therapy in combination with honey and curcumin dressing is effective against disease progression in patients with DFUs.
文摘Dear sir,Iam Dr.Wen-Wei Li,from the Department of Ophthalmology,Zhejiang Provincial People’s Hospital,Hangzhou,China.I write to present a case of ocular leech infestation initially misdiagnosed as conjunctival pigmented nevus.Although human interaction with leeches is not
文摘Leech thinks that people sometimes disobey Grice's Cooperative Principle in order to express themselves politely in interaction.Therefore he postulates the Politeness Principle and believes that it should be obeyed in communication.This paper analyzes his PP by using some examples in daily life.
