BACKGROUND The prominent symptoms of chronic pelvic pain syndrome(CPPS)are urogenital pain,lower urinary tract symptoms,psychological problems,and sexual dysfunction.Traditional pharmacological treatments have poor ef...BACKGROUND The prominent symptoms of chronic pelvic pain syndrome(CPPS)are urogenital pain,lower urinary tract symptoms,psychological problems,and sexual dysfunction.Traditional pharmacological treatments have poor efficacy and more untoward reaction and complications.Magnetic vibration magnetoelectric therapy is a non-invasive form of physiotherapy.Nevertheless,its effectiveness in improving urinary discomfort and relieving pain in patients requires further exploration.AIM To investigate the clinical efficacy of the magnetic vibration magnetoelectric therapy instrument in the treatment of chronic prostatitis(CP)/CPPS.METHODS Seventy patients with CP/CPPS were collected from the outpatient clinic and ward of the Department of Male Medicine,Jiangsu Province Hospital of Traditional Chinese Medicine,and were treated with magnetic vibration magnetoelectric therapy once a day for a period of 14 d.National Institutes of healthchronic prostatitis symptom index(NIH-CPSI),international index of erectile function 5(IIEF-5),premature ejaculation diagnostic tool(PEDT),generalized anxiety disorder(GAD),patient health questionnaire,the pain catastrophizing scale(PCS)and traditional Chinese medicine syndrome(TCMS)scores were performed before and after treatment.RESULTS The total effective rate of treatment was 58.5%,and the total NIH-CPSI score,pain symptoms,voiding symptoms,quality of life,IIEF-5,PEDT,GAD,PCS and TCMS scores all decreased significantly(P<0.05).CONCLUSION Magnetic vibration magnetotherapy is effective in improving urinary discomfort,relieving pain,improving quality of life,improving sexual dysfunction and relieving negative emotions such as anxiety in patients with CP/CPPS.展开更多
Objective To probe into the function mechanism of penetration therapy with head electrical acupuncture on Parkinson＇s disease. Methods Microinjection of 6-hydroxydopamin （6-OHDA） on the left cor- pus striatum was a...Objective To probe into the function mechanism of penetration therapy with head electrical acupuncture on Parkinson＇s disease. Methods Microinjection of 6-hydroxydopamin （6-OHDA） on the left cor- pus striatum was adopted to prepare rotation model of Parkinson^s disease in rat. Penetration therapy with head electrical acupuncture was administered in treatment. Normal group, sham-operation group, model group and penetration therapy group were set up. （1）lmmunohistochemical （IHC） method was used to test the morphology and count of positive cell of tyrosine hydroxylase （TH）. （2）RT-PCR technology was used to detect the expression of nestin mRNA of neural stem cell （NSC）. Results （1）Compared with model group, in pene- tration therapy group, the expressions of TH-positive neurons in immune response were increased in areal density （AD）, numerical density （ND） and integrating optic density （P〈0.05）. （2）Compared with model group, in penetration therapy group, the expression of nestin mRNA was increased （P〈0. 05）. Conclusion Penetration therapy with head electrical acupuncture promotes the proliferation of endogenous neural stem cells in substantia nigra of rat model of Parkinson＇s disease.展开更多
Drug treatment, electric stimulation and decimeter wave therapy have been shown to promote the repair and regeneration of the peripheral nerves at the injured site. This study prepared a Mackinnon’s model of rat scia...Drug treatment, electric stimulation and decimeter wave therapy have been shown to promote the repair and regeneration of the peripheral nerves at the injured site. This study prepared a Mackinnon’s model of rat sciatic nerve compression. Electric stimulation was given immediately after neurolysis, and decimeter wave radiation was performed at 1 and 12 weeks post-operation. Histological observation revealed that intraoperative electric stimulation and decimeter wave therapy could improve the local blood circulation of repaired sites, alleviate hypoxia of compressed nerves, and lessen adhesion of compressed nerves, thereby decreasing the formation of new entrapments and enhancing compressed nerve regeneration through an improved microenvironment for regeneration. Immunohistochemical staining results revealed that intraoperative electric stimulation and decimeter wave could promote the expression of S-100 protein. Motor nerve conduction velocity and amplitude, the number and diameter of myelinated nerve fibers, and sciatic functional index were significantly increased in the treated rats. These results verified that intraoperative electric stimulation and decimeter wave therapy contributed to the regeneration and the recovery of the functions in the compressed nerves.展开更多
Despite emerging contemporary biotechnological methods such as gene-and stem cell-based therapy,there are no clinically established therapeutic strategies for neural regeneration after spinal cord injury.Our previous ...Despite emerging contemporary biotechnological methods such as gene-and stem cell-based therapy,there are no clinically established therapeutic strategies for neural regeneration after spinal cord injury.Our previous studies have demonstrated that transplantation of genetically engineered human umbilical cord blood mononuclear cells producing three recombinant therapeutic molecules,including vascular endothelial growth factor(VEGF),glial cell-line derived neurotrophic factor(GDNF),and neural cell adhesion molecule(NCAM)can improve morpho-functional recovery of injured spinal cord in rats and mini-pigs.To investigate the efficacy of human umbilical cord blood mononuclear cells-mediated triple-gene therapy combined with epidural electrical stimulation in the treatment of spinal cord injury,in this study,rats with moderate spinal cord contusion injury were intrathecally infused with human umbilical cord blood mononuclear cells expressing recombinant genes VEGF165,GDNF,NCAM1 at 4 hours after spinal cord injury.Three days after injury,epidural stimulations were given simultaneously above the lesion site at C5(to stimulate the cervical network related to forelimb functions)and below the lesion site at L2(to activate the central pattern generators)every other day for 4 weeks.Rats subjected to the combined treatment showed a limited functional improvement of the knee joint,high preservation of muscle fiber area in tibialis anterior muscle and increased H/M ratio in gastrocnemius muscle 30 days after spinal cord injury.However,beneficial cellular outcomes such as reduced apoptosis and increased sparing of the gray and white matters,and enhanced expression of heat shock and synaptic proteins were found in rats with spinal cord injury subjected to the combined epidural electrical stimulation with gene therapy.This study presents the first proof of principle study of combination of the multisite epidural electrical stimulation with ex vivo triple gene therapy(VEGF,GDNF and NCAM)for treatment of spinal cord injury in rat models.The animal protocols were approved by the Kazan State Medical University Animal Care and Use Committee(approval No.2.20.02.18)on February 20,2018.展开更多
BACKGROUND Electrical burns are devastating injuries and can cause deep burns with significant morbidity and delayed sequelae.Epidemiological data regarding the etiology,socioeconomic differences and geographic variat...BACKGROUND Electrical burns are devastating injuries and can cause deep burns with significant morbidity and delayed sequelae.Epidemiological data regarding the etiology,socioeconomic differences and geographic variation are necessary to assess the disease burden and plan an effective preventive strategy.These severe injuries often lead to amputations and thus hamper quality of life in the long term AIM To identify the population at maximum risk of sustaining electrical burns.We also studied the impact of electrical burns on these patients in terms of quality of life as well as return to work.METHODS The study was conducted at a tertiary referral teaching hospital over a period of eighteen months.All patients with a history of sustaining electrical burns and satisfying the inclusion criteria were included in the study.All relevant epidemiological parameters and treatment details were recorded.The patients were subsequently followed up at 3 mo,6 mo and 9 mo.The standardized Brief Version of the Burn Specic Health Scale(BSHS-B)was adopted to assess quality of life.Statistical analysis was conducted using IBM SPSS statistics(version 22.0).A P value of<0.05 was considered statistically significant.RESULTS A total of 103 patients were included in the study.The mean age of the patients was 31.83 years(range 18-75 years).A significant majority(91.3%)of patients were male.The mean total body surface area(TBSA)in these patients was 21.1%.In most of the patients(67%),the injury was occupation-related.High voltage injuries were implicated in 72.8%of patients.Among the 75 high voltage burn patients,31(41%)required amputation.The mean number of surgeries the patients underwent in hospital was 2.03(range 1 to 4).The quality of life parameters amongst the patients sustaining high voltage electrical burns were poorer when compared to low voltage injuries at all follow-up intervals across nine domains.In eight of these domains,the difference was statistically significant.Similarly,the scores among the amputees were poorer when compared to non-amputees.The difference was statistically significant in six domains.CONCLUSION Electrical burns remain a problem in the developing world.Most injuries are occupation-related.The quality of life in patients with high voltage burns and amputees remains poor.Work resumption was almost impossible for amputees.These patients could not regain pre-injury status.Steps should be taken to create awareness and to implement an effective preventive strategy to safeguard against electrical injuries.展开更多
Post-concussion syndrome (PCS) is a complex disorder with various symptoms. There is limited evidence to support that any intervention enhances recovery after a concussion. This pilot study aimed to examine the effica...Post-concussion syndrome (PCS) is a complex disorder with various symptoms. There is limited evidence to support that any intervention enhances recovery after a concussion. This pilot study aimed to examine the efficacy of neck paraspinal muscles electrical stimulation (ES) in conjunction with physical therapy (PT) on reducing the severity of post concussive symptoms. Twenty-four individuals with PCS were randomly assigned to the ES group (PT + ES) or the control group (PT only). Both groups received the intervention twice a week for eight weeks. Clinical measures including the Concussion Signs/Symptoms Checklist, balance error scoring system, King-Devick test, ImPACT, and the Standardized Assessment of Concussion were used to evaluate the symptoms. We investigated the recovery rate by calculating slopes of changes over time for each participant. A changing slope was derived by linearly fitting the symptoms severity over time with the initial severity score as the intercept. Significant overall improvement was observed in both groups after the interventions. There was no significant difference seen in total symptom recovery rate between two groups (-1.49 ± 1.59 versus -1.2 ± 1.56, p = 0.32). The cognitive symptoms recovery rate of the ES group was faster than the control group (-0.5 ± 0.49 and -0.13 ± 0.46 respectively, p = 0.04). Physical therapy targeting the cervical region is beneficial for persons with PCS. Moreover, peripheral electrical stimulation on the paraspinal muscles surrounding the neck region could potentially advance the cognitive function recovery of persons with PCS.展开更多
The mounting endemic of prescription iatrogenic opioid dependence in pain patients provoked this treatise about an alternative method that can be used to treat pain, improve function and reduce the risk of opioid depe...The mounting endemic of prescription iatrogenic opioid dependence in pain patients provoked this treatise about an alternative method that can be used to treat pain, improve function and reduce the risk of opioid dependence. It is well known that as well as the side effects reported for chronic opioid therapy, genetically predisposed individuals are at risk for opioid dependence. We propose the use of the Genetic Addiction Risk Score (GARS) assessment to identify patients early in treatment who should avoid narcotic pain medications. Primarily, this review will be an exploration of the mechanisms of action of an electrotherapeutic alternative to narcotic treatment that can be used to augment tissue healing and reduce the pain associated with human injuries and neuropathies. This particular electrotherapeutic device was developed at the Electronic Waveform Laboratory in Huntington Beach, California and is called the H-Wave? device. The primary effect of the H-Wave?device is stimulation (HWDS) of small diameter fibers of “red-slow-twitch” skeletal muscle. Mechanisms of action of HWDS have been investigated in both animal and human studies. They include edema reduction, induction of nitric oxide dependent augmented microcirculation and angiogenesis, small muscle contraction that eliminates transcapillary fluid shifts, reducing the painful effects of tetanizing fatigue and gradual loading of healing injured muscle tissue that helps repair and remodeling. A recent metaanalysis found a moderate-to-strong-positive effect of the HWDS in providing pain relief, reducing the requirement for pain medication, with the most robust effect being increased functionality. We are proposing that GARS can be used to identify those at risk of developing opioid dependence and that the need for opioid analgesia can be reduced by use of this electro therapeutic alternative to opioid analgesia in the treatment of pain and injuries.展开更多
Effective and safe electrical stimulation of the retinal ganglion cells is at the heart of retinal prosthesis design.However,the effectiveness and safety demand of the electrical stimulation is often at odds against e...Effective and safe electrical stimulation of the retinal ganglion cells is at the heart of retinal prosthesis design.However,the effectiveness and safety demand of the electrical stimulation is often at odds against each other.Besides,the nerve fiber layer above retinal ganglion cells limits the spatial resolution of stimulation.Also,current retinal prosthesis still cannot selectively activate the ON or OFF visual pathways,thus cannot relay the correct luminance information to the brain.With decades of development,the stimulation protocol for retinal implants began to tackle these problems.We believe that a novel design of electrical stimulation scheme,combined with gene therapy technique,can improve the selectivity and spatial resolution of retinal implants and further lower the damage caused by electric stimulation.展开更多
Intensive care units’ acquired muscle weakness is present in approximately 50% of the patients. Although active muscle training can attenuate weakness, a large proportion of critical patients cannot participate in an...Intensive care units’ acquired muscle weakness is present in approximately 50% of the patients. Although active muscle training can attenuate weakness, a large proportion of critical patients cannot participate in any active mobilization. Neuromuscular electrical stimulation may be an alternative strategy to reverse muscle weakness. The objective of the study was to review the scientific publications on the use of neuromuscular electrical stimulation and its parameters and the main results in patients hospitalized in intensive care units. This is an integrative review surveying studies in online databases. The studies were selected from the following descriptors: neuromuscular electrical stimulation AND parameters AND intensive care units AND muscle weakness. The inclusion criteria included articles that addressed the topic of neuromuscular electrical stimulation and the parameters used in patients admitted to intensive care units, aged 18 years or older. Exclusion criteria were studies involving animals, case reports, letters to the editor and book chapters. The search comprised articles in the Portuguese, English and Spanish languages from January 2013 to March 2019. Of the 185 articles identified, nine met the eligibility criteria. The studies were evaluated assessing the level of evidence, and the relevant information was presented in the table and discussed. The parameters of the neuromuscular electrical stimulation employed in the studies showed positive results for the maintenance of strength and muscle mass. There was evidence of benefits in the local and systemic microcirculation, potentially mobilizing endothelial stem cells, to prevent atrophy, to reduce mechanical ventilation time and stay in intensive care unit;and when incorporated into the usual physiotherapy care, proved to be more effective than usual care. Its use is safe and viable in critically ill patients.展开更多
文摘BACKGROUND The prominent symptoms of chronic pelvic pain syndrome(CPPS)are urogenital pain,lower urinary tract symptoms,psychological problems,and sexual dysfunction.Traditional pharmacological treatments have poor efficacy and more untoward reaction and complications.Magnetic vibration magnetoelectric therapy is a non-invasive form of physiotherapy.Nevertheless,its effectiveness in improving urinary discomfort and relieving pain in patients requires further exploration.AIM To investigate the clinical efficacy of the magnetic vibration magnetoelectric therapy instrument in the treatment of chronic prostatitis(CP)/CPPS.METHODS Seventy patients with CP/CPPS were collected from the outpatient clinic and ward of the Department of Male Medicine,Jiangsu Province Hospital of Traditional Chinese Medicine,and were treated with magnetic vibration magnetoelectric therapy once a day for a period of 14 d.National Institutes of healthchronic prostatitis symptom index(NIH-CPSI),international index of erectile function 5(IIEF-5),premature ejaculation diagnostic tool(PEDT),generalized anxiety disorder(GAD),patient health questionnaire,the pain catastrophizing scale(PCS)and traditional Chinese medicine syndrome(TCMS)scores were performed before and after treatment.RESULTS The total effective rate of treatment was 58.5%,and the total NIH-CPSI score,pain symptoms,voiding symptoms,quality of life,IIEF-5,PEDT,GAD,PCS and TCMS scores all decreased significantly(P<0.05).CONCLUSION Magnetic vibration magnetotherapy is effective in improving urinary discomfort,relieving pain,improving quality of life,improving sexual dysfunction and relieving negative emotions such as anxiety in patients with CP/CPPS.
基金the Excellent Discipline Leadership Fund Project of Harbin Science-Technology Administration :2006RFXYS044
文摘Objective To probe into the function mechanism of penetration therapy with head electrical acupuncture on Parkinson＇s disease. Methods Microinjection of 6-hydroxydopamin （6-OHDA） on the left cor- pus striatum was adopted to prepare rotation model of Parkinson^s disease in rat. Penetration therapy with head electrical acupuncture was administered in treatment. Normal group, sham-operation group, model group and penetration therapy group were set up. （1）lmmunohistochemical （IHC） method was used to test the morphology and count of positive cell of tyrosine hydroxylase （TH）. （2）RT-PCR technology was used to detect the expression of nestin mRNA of neural stem cell （NSC）. Results （1）Compared with model group, in pene- tration therapy group, the expressions of TH-positive neurons in immune response were increased in areal density （AD）, numerical density （ND） and integrating optic density （P〈0.05）. （2）Compared with model group, in penetration therapy group, the expression of nestin mRNA was increased （P〈0. 05）. Conclusion Penetration therapy with head electrical acupuncture promotes the proliferation of endogenous neural stem cells in substantia nigra of rat model of Parkinson＇s disease.
文摘Drug treatment, electric stimulation and decimeter wave therapy have been shown to promote the repair and regeneration of the peripheral nerves at the injured site. This study prepared a Mackinnon’s model of rat sciatic nerve compression. Electric stimulation was given immediately after neurolysis, and decimeter wave radiation was performed at 1 and 12 weeks post-operation. Histological observation revealed that intraoperative electric stimulation and decimeter wave therapy could improve the local blood circulation of repaired sites, alleviate hypoxia of compressed nerves, and lessen adhesion of compressed nerves, thereby decreasing the formation of new entrapments and enhancing compressed nerve regeneration through an improved microenvironment for regeneration. Immunohistochemical staining results revealed that intraoperative electric stimulation and decimeter wave could promote the expression of S-100 protein. Motor nerve conduction velocity and amplitude, the number and diameter of myelinated nerve fibers, and sciatic functional index were significantly increased in the treated rats. These results verified that intraoperative electric stimulation and decimeter wave therapy contributed to the regeneration and the recovery of the functions in the compressed nerves.
基金supported by the grant of Russian Science Foundation,No.16-15-00010(to RRI)supported by the Russian Government Program of Competitive Growth of Kazan Federal University。
文摘Despite emerging contemporary biotechnological methods such as gene-and stem cell-based therapy,there are no clinically established therapeutic strategies for neural regeneration after spinal cord injury.Our previous studies have demonstrated that transplantation of genetically engineered human umbilical cord blood mononuclear cells producing three recombinant therapeutic molecules,including vascular endothelial growth factor(VEGF),glial cell-line derived neurotrophic factor(GDNF),and neural cell adhesion molecule(NCAM)can improve morpho-functional recovery of injured spinal cord in rats and mini-pigs.To investigate the efficacy of human umbilical cord blood mononuclear cells-mediated triple-gene therapy combined with epidural electrical stimulation in the treatment of spinal cord injury,in this study,rats with moderate spinal cord contusion injury were intrathecally infused with human umbilical cord blood mononuclear cells expressing recombinant genes VEGF165,GDNF,NCAM1 at 4 hours after spinal cord injury.Three days after injury,epidural stimulations were given simultaneously above the lesion site at C5(to stimulate the cervical network related to forelimb functions)and below the lesion site at L2(to activate the central pattern generators)every other day for 4 weeks.Rats subjected to the combined treatment showed a limited functional improvement of the knee joint,high preservation of muscle fiber area in tibialis anterior muscle and increased H/M ratio in gastrocnemius muscle 30 days after spinal cord injury.However,beneficial cellular outcomes such as reduced apoptosis and increased sparing of the gray and white matters,and enhanced expression of heat shock and synaptic proteins were found in rats with spinal cord injury subjected to the combined epidural electrical stimulation with gene therapy.This study presents the first proof of principle study of combination of the multisite epidural electrical stimulation with ex vivo triple gene therapy(VEGF,GDNF and NCAM)for treatment of spinal cord injury in rat models.The animal protocols were approved by the Kazan State Medical University Animal Care and Use Committee(approval No.2.20.02.18)on February 20,2018.
文摘BACKGROUND Electrical burns are devastating injuries and can cause deep burns with significant morbidity and delayed sequelae.Epidemiological data regarding the etiology,socioeconomic differences and geographic variation are necessary to assess the disease burden and plan an effective preventive strategy.These severe injuries often lead to amputations and thus hamper quality of life in the long term AIM To identify the population at maximum risk of sustaining electrical burns.We also studied the impact of electrical burns on these patients in terms of quality of life as well as return to work.METHODS The study was conducted at a tertiary referral teaching hospital over a period of eighteen months.All patients with a history of sustaining electrical burns and satisfying the inclusion criteria were included in the study.All relevant epidemiological parameters and treatment details were recorded.The patients were subsequently followed up at 3 mo,6 mo and 9 mo.The standardized Brief Version of the Burn Specic Health Scale(BSHS-B)was adopted to assess quality of life.Statistical analysis was conducted using IBM SPSS statistics(version 22.0).A P value of<0.05 was considered statistically significant.RESULTS A total of 103 patients were included in the study.The mean age of the patients was 31.83 years(range 18-75 years).A significant majority(91.3%)of patients were male.The mean total body surface area(TBSA)in these patients was 21.1%.In most of the patients(67%),the injury was occupation-related.High voltage injuries were implicated in 72.8%of patients.Among the 75 high voltage burn patients,31(41%)required amputation.The mean number of surgeries the patients underwent in hospital was 2.03(range 1 to 4).The quality of life parameters amongst the patients sustaining high voltage electrical burns were poorer when compared to low voltage injuries at all follow-up intervals across nine domains.In eight of these domains,the difference was statistically significant.Similarly,the scores among the amputees were poorer when compared to non-amputees.The difference was statistically significant in six domains.CONCLUSION Electrical burns remain a problem in the developing world.Most injuries are occupation-related.The quality of life in patients with high voltage burns and amputees remains poor.Work resumption was almost impossible for amputees.These patients could not regain pre-injury status.Steps should be taken to create awareness and to implement an effective preventive strategy to safeguard against electrical injuries.
文摘Post-concussion syndrome (PCS) is a complex disorder with various symptoms. There is limited evidence to support that any intervention enhances recovery after a concussion. This pilot study aimed to examine the efficacy of neck paraspinal muscles electrical stimulation (ES) in conjunction with physical therapy (PT) on reducing the severity of post concussive symptoms. Twenty-four individuals with PCS were randomly assigned to the ES group (PT + ES) or the control group (PT only). Both groups received the intervention twice a week for eight weeks. Clinical measures including the Concussion Signs/Symptoms Checklist, balance error scoring system, King-Devick test, ImPACT, and the Standardized Assessment of Concussion were used to evaluate the symptoms. We investigated the recovery rate by calculating slopes of changes over time for each participant. A changing slope was derived by linearly fitting the symptoms severity over time with the initial severity score as the intercept. Significant overall improvement was observed in both groups after the interventions. There was no significant difference seen in total symptom recovery rate between two groups (-1.49 ± 1.59 versus -1.2 ± 1.56, p = 0.32). The cognitive symptoms recovery rate of the ES group was faster than the control group (-0.5 ± 0.49 and -0.13 ± 0.46 respectively, p = 0.04). Physical therapy targeting the cervical region is beneficial for persons with PCS. Moreover, peripheral electrical stimulation on the paraspinal muscles surrounding the neck region could potentially advance the cognitive function recovery of persons with PCS.
文摘The mounting endemic of prescription iatrogenic opioid dependence in pain patients provoked this treatise about an alternative method that can be used to treat pain, improve function and reduce the risk of opioid dependence. It is well known that as well as the side effects reported for chronic opioid therapy, genetically predisposed individuals are at risk for opioid dependence. We propose the use of the Genetic Addiction Risk Score (GARS) assessment to identify patients early in treatment who should avoid narcotic pain medications. Primarily, this review will be an exploration of the mechanisms of action of an electrotherapeutic alternative to narcotic treatment that can be used to augment tissue healing and reduce the pain associated with human injuries and neuropathies. This particular electrotherapeutic device was developed at the Electronic Waveform Laboratory in Huntington Beach, California and is called the H-Wave? device. The primary effect of the H-Wave?device is stimulation (HWDS) of small diameter fibers of “red-slow-twitch” skeletal muscle. Mechanisms of action of HWDS have been investigated in both animal and human studies. They include edema reduction, induction of nitric oxide dependent augmented microcirculation and angiogenesis, small muscle contraction that eliminates transcapillary fluid shifts, reducing the painful effects of tetanizing fatigue and gradual loading of healing injured muscle tissue that helps repair and remodeling. A recent metaanalysis found a moderate-to-strong-positive effect of the HWDS in providing pain relief, reducing the requirement for pain medication, with the most robust effect being increased functionality. We are proposing that GARS can be used to identify those at risk of developing opioid dependence and that the need for opioid analgesia can be reduced by use of this electro therapeutic alternative to opioid analgesia in the treatment of pain and injuries.
基金This study was supported by National Key R&D Program of China(Grant No.2017YFC0111202)(Z Xu)National Natural Science Foundation of China(Grant No.31800871)(Z Xu)Shenzhen Science and Technology Research Program(Grant No.JCYJ20170818163342873)(Z Xu).
文摘Effective and safe electrical stimulation of the retinal ganglion cells is at the heart of retinal prosthesis design.However,the effectiveness and safety demand of the electrical stimulation is often at odds against each other.Besides,the nerve fiber layer above retinal ganglion cells limits the spatial resolution of stimulation.Also,current retinal prosthesis still cannot selectively activate the ON or OFF visual pathways,thus cannot relay the correct luminance information to the brain.With decades of development,the stimulation protocol for retinal implants began to tackle these problems.We believe that a novel design of electrical stimulation scheme,combined with gene therapy technique,can improve the selectivity and spatial resolution of retinal implants and further lower the damage caused by electric stimulation.
基金funded in part by the Coordination of Improvement of Higher Level Personnel—Brazil(CAPES)—Finance Code 001by the National Council of Scientific and Technological Development—Brazil(CNPq)—Doctorate GD
文摘Intensive care units’ acquired muscle weakness is present in approximately 50% of the patients. Although active muscle training can attenuate weakness, a large proportion of critical patients cannot participate in any active mobilization. Neuromuscular electrical stimulation may be an alternative strategy to reverse muscle weakness. The objective of the study was to review the scientific publications on the use of neuromuscular electrical stimulation and its parameters and the main results in patients hospitalized in intensive care units. This is an integrative review surveying studies in online databases. The studies were selected from the following descriptors: neuromuscular electrical stimulation AND parameters AND intensive care units AND muscle weakness. The inclusion criteria included articles that addressed the topic of neuromuscular electrical stimulation and the parameters used in patients admitted to intensive care units, aged 18 years or older. Exclusion criteria were studies involving animals, case reports, letters to the editor and book chapters. The search comprised articles in the Portuguese, English and Spanish languages from January 2013 to March 2019. Of the 185 articles identified, nine met the eligibility criteria. The studies were evaluated assessing the level of evidence, and the relevant information was presented in the table and discussed. The parameters of the neuromuscular electrical stimulation employed in the studies showed positive results for the maintenance of strength and muscle mass. There was evidence of benefits in the local and systemic microcirculation, potentially mobilizing endothelial stem cells, to prevent atrophy, to reduce mechanical ventilation time and stay in intensive care unit;and when incorporated into the usual physiotherapy care, proved to be more effective than usual care. Its use is safe and viable in critically ill patients.
