Th17/Treg balance and macrophage polarization ratio in lower extremity arteriosclerosis obliterans

Objective:To explore the balance of peripheral blood T helper 17 cells/regulatory T cell(Th17/Treg)ratio and the polarization ratio of M1 and M2 macrophages in lower extremity arteriosclerosis obliterans(ASO).Methods:A rat model of lower extremity ASO was established,and blood samples from patients with lower extremity ASO before and after surgery were obtained.ELISA was used to detect interleukin 6(IL-6),IL-10,and IL-17.Real-time RCR and Western blot analyses were used to detect Foxp3,IL-6,IL-10,and IL-17 expression.Moreover,flow cytometry was applied to detect the Th17/Treg ratio and M1/M2 ratio.Results:Compared with the control group,the iliac artery wall of ASO rats showed significant hyperplasia,and the concentrations of cholesterol and triglyceride were significantly increased(P<0.01),indicating the successful establishment of ASO.Moreover,the levels of IL-6 and IL-17 in ASO rats were pronouncedly increased(P<0.05),while the IL-10 level was significantly decreased(P<0.05).In addition to increased IL-6 and IL-17 levels,the mRNA and protein levels of Foxp3 and IL-10 in ASO rats were significantly decreased compared with the control group.The Th17/Treg and M1/M2 ratios in the ASO group were markedly increased(P<0.05).These alternations were also observed in ASO patients.After endovascular surgery(such as percutaneous transluminal angioplasty and arterial stenting),all these changes were significantly improved(P<0.05).Conclusions:The Th17/Treg and M1/M2 ratios were significantly increased in ASO,and surgery can effectively improve the balance of Th17/Treg,and reduce the ratio of M1/M2,and the expression of inflammatory factors.

Lower Extremity Arterial Disease in Patients with Type 2 Diabetes: Prevalence and Associated Factors at the Libreville University Hospital Center

Introduction: Lower extremity arterial disease in diabetic patients has distinct characteristics. Objectives: To study the hospital frequency of lower extremity arterial disease and identify associated factors in diabetic patients at the Libreville University Hospital Center (CHUL). Materials and Methods: This was a cross-sectional study conducted from July 1, 2023, to January 31, 2024, in the endocrinology department of the CHUL. All patients with type 2 diabetes over the age of 18 admitted to this department, regardless of the reason for hospitalization, who provided informed consent, were included. Socio-demographic data and cardiovascular risk factors were recorded. Personal and family cardiovascular history and functional symptoms were investigated. The physical examination included measuring blood pressure, heart rate, and the ankle-brachial index in all patients. Results: A total of 219 patients were included, of whom 75 had lower extremity arterial disease, representing a prevalence of 34.24%. It was compensated in 28 cases (37.33%) and decompensated in 39 patients (52%). In eight cases (10.67%), there was critical chronic ischemia. Cardiovascular risk factors associated with diabetes were physical inactivity (89.5%), hypertension (55.25%), overweight (49.77%), obesity (22.84%), and smoking (10.04%). In multivariate analysis, only hypertension (OR = 2.09;95% CI: 1.05 - 4.17;p = 0.035) and LDL cholesterol (OR = 2.75;95% CI: 1.10 - 6.85;p = 0.03) were significantly associated with lower extremity arterial disease in diabetics at the University Hospital of Libreville. Conclusion: Lower extremity arterial disease is common in diabetic patients at the University Hospital of Libreville. It is often asymptomatic, thus requiring systematic screening.[-rId11-]

Relationships between Quadriceps:Hamstring Strength Ratio and Lower Extremity Injuries in Netball Players

Background: Netball is a popular sport. Due to high impact and quick movement, there is an enormous load on the lower extremities which increases the risk for injury. Aim: The aim of this study was to investigate the relationship between the quadricep and hamstring strength and the prevalence of lower extremity injuries in netball players. Setting: Twenty-five female netball players (age: 20.8 ± 1.4 years) voluntarily participated. Methods: The Cybex Isokinetic dynamometer was used to determine concentric knee torques. Quadriceps:hamstring strength ratio was determined. Occurrence of lower extremity injuries was documented bi-weekly. Results: Medium effect sizes were noted for flexion torque:work for the left leg and for the quadriceps:hamstring ratio (≥60%) for the right leg. All the other measured variables have a small effect size. 18.75% of lower extremity injuries and ConQ:ConH of Conclusion: Injuries to the ankle and knee are especially common among netball players. Hamstring and quadriceps muscle asymmetry (>10%) were found to be a potential indicator of lower extremity injury. Contribution: This study highlights awareness on lower extremity injuries and the strength ratio between the quadriceps and hamstrings. This can aid coaches and netball players to lower the risk for injuries and thus improve individual- and team performance.

Analysis of the Effect of Problem-Oriented Nursing Intervention on Patients with Lower Extremity Arteriosclerosis Obliterans in Vascular Surgery

Objective: To analyze the effect of problem-oriented nursing intervention on patients with lower extremity arteriosclerosis obliterans (ASO) in vascular surgery. Methods: The clinical data of 128 patients with lower extremity ASO in vascular surgery were selected and randomly divided into groups A and B, with 64 cases each. Group A is the control group, and Group B is the observation group. Group A received the routine nursing intervention, and Group B received the problem-oriented nursing intervention. The compliance, self-care ability, psychological state, quality of life, and nursing satisfaction of the two groups of patients were evaluated based on various indicators. Results: After the intervention, the evaluation of self-care ability (ESCA) score of the patients in Group B was higher than that of Group A, and the symptom checklist-90 (SCL-90) score was lower than that of Group A. The differences were significant (t = 10.019, t = 3.118, P < 0.01). After the intervention, the World Health Organization Quality of Life Brief (WHOQOL-BREF) index scores of the two groups increased and the increase in Group B was significantly higher than Group A (P < 0.001). The compliance rate of Group B (62/ 96.88%) was higher than that of Group A (52/ 81.25%), and the difference was extremely significant (χ2 = 8.020, P < 0.01). Conclusion: Problem-oriented nursing intervention for patients with lower extremity ASO in vascular surgery improved the patient’s self-care ability, and quality of life, reduced the patient’s negative emotions, and enhanced their overall satisfaction.

Observation of the effect of angiojet to treat acute lower extremity arterial embolization

BACKGROUND Through significant advances in the treatment of peripheral arterial occlusive disease,acute ischemia of the lower extremity is still associated with significant morbidity,limb threat and mortality.The two main causes of acute ischemia in lower extremities are arterial embolism and atherosclerotic arteries.Timely recognition and treatment of acute limb ischemia in emergency situations is essential in order to minimize the duration of ischemia.AIM To investigate the application effect of angiojet thrombolysis in the treatment of acute lower extremity arterial embolization.METHODS Sixty-two patients with acute lower extremity arterial embolization admitted to our hospital from May 2018 to May 2020 were selected.Among them,the observation group(twenty-eight cases)had received angiojet thrombolysis,and the control group(thirty-four cases)had received femoral artery incision and thrombectomy.After thrombus clearance,significant residual stenosis of the lumen was combined with balloon dilation and/or stent implantation.When the thrombus removal was not satisfactory,catheter-directed thrombolysis was performed.The incidence of postoperative complications,recurrence rate and recovery of the two groups were compared.RESULTS There were no significant differences in postoperative recurrence(target vessel reconstruction rate),anklebrachial index and the incidence of postoperative complications between the two groups(P>0.05);there were statistically significant differences in postoperative pain score and postoperative rehabilitation between the two groups(P<0.05).CONCLUSION The application of angiojet in the treatment of acute lower limb artery thromboembolism disease is safe and effective,minimally invasive,quicker recovery after operation,less postoperative complications,which is more suitable for the treatment of femoral popliteal arterial thromboembolism lesions.If the thrombus removal is not satisfactory,the combination of coronary artery aspiration catheter and catheterized directed thrombolysis can be used.Balloon dilation and stent implantation can be considered for obvious lumen stenosis.

New Approach to Measuring the Ankle and Toe Brachial Indices as New Markers for Early Detection of Lower Extremity Peripheral Artery Disease

Background: Lower extremity Peripheral artery disease (PAD) is caused by atherosclerosis, or Plaque buildup, that reduces the blood flow to the legs and feet. PAD affects approximately 230 million adults worldwide and is associated with an increased risk of coronary heart disease, stroke, and leg amputation. The first-line method for diagnosis of PAD is the Ankle Brachial Index (ABI), which is the ratio of ankle to brachial higher systolic pressure measured in ankles and arms. The Toe Brachial Index (TBI), which is the ratio of the toe systolic pressure to brachial higher systolic pressure measured in both arms, is considered to be an alternative to the ABI in screening for PAD. The ABI and TBI are measured on the right and left side, and the lower of these numbers is the patient’s overall ABI and TBI. Clinical studies and meta-analysis reviews have shown that the conventional ABI measurement, which uses a cuff, and handheld sphygmomanometer and continuous-wave Doppler tracings, provides an acceptable-to-high specificity level but low sensitivity when compared with vascular color Doppler ultrasound, and/or angiography methods. Another study has shown that the TBI measurement has greater sensitivity but lower specificity than the ABI when compared with vascular color Doppler ultrasound diagnostic based on waveforms. The aim of this clinical study was to evaluate the specificity and sensitivity of the VasoPad System comparing its results to the vascular color doppler ultrasound waveforms. Materials and Methods: The VasoPad System is an automated device using the pulse wave method to measure the arms and ankles dorsalis and tibial posterior artery blood pressures, the photoplethysmography second derivative (PTGSD) to estimate the toe systolic pressure, a patented photoplethysmography (PTG) index marker and volume plethysmography via cuffs during deflation. Vascular Color Doppler ultrasound can diagnose stenosis through the direct visualization of atherosclerosis or plaques and through waveform analysis. The vascular color Doppler ultrasound provides 3 waveform types. The type 1, triphasic waveform is normal blood flow and no atherosclerosis or plaque, the type 2, diphasic waveform is seen when there are atherosclerosis plaques, but normal blood flow, and the type 3, monophasic waveform reflects stenosis with diameter reduction > 50%. Results: The sum of the overall ABI and TBI VasoPad values, called Sum of Brachial Indices (SBI), gave a specificity of 88.89% and sensitivity of 100% for detecting vascular color Doppler ultrasound biphasic and monophasic waveforms versus triphasic waveforms with a cutoff ≤ 1.36 (P Conclusion: The VasoPad was useful for detecting PAD, which is fully defined as having vessel stenosis > 50% (Doppler monophasic waveforms) but also early stage of atherosclerosis plaque of the lower extremities (Doppler biphasic waveforms). The VasoPad method provided a remarkable sensitivity of 100% and a specificity level similar to those of the conventional ABI test method compared with the vascular color Doppler ultrasound. In addition to being useful to screen and detect PAD, the VasoPad offers early detection of lower extremity atherosclerosis, with normal blood flow (Doppler biphasic waveforms), which could provide greater treatment options and thus reduce the overall number of lower extremity complications.

To Explore the Relationship between Lower Extremity Vascular Sclerosis and Osteoporosis in Elderly Men with Type 2 Diabetes Mellitus

Objective: To investigate the correlation between lower extremity vascular sclerosis and osteoporosis in elderly men with type 2 diabetes mellitus. Methods: A total of 359 elderly male patients with type II diabetes hospitalized in the First Affiliated Hospital of Chongqing Medical University from January 2018 to June 2023 were retrospectively collected. According to the BMD (Bone Density Value), the patients were categorized into osteoporotic (T ≤ -2.5, n = 248) and non-osteoporotic groups (T > -2.5, n = 111). T test and Chi-square test were used to evaluate the differences in clinical data, biochemical markers and ABI between two groups. Multivariate logistic regression was used to analyze the risk factors of osteoporosis in elderly men with type 2 diabetes mellitus. Results: Compared with the non-osteoporotic group, the differences in diabetes course, systolic blood pressure, ABI, BMI, uric acid, triglyceride, and HDL in the osteoporotic group were statistically significant (P < 0.05). Logistic multivariate regression analysis showed that lower extremity vascular sclerosis was an independent risk factor for osteoporosis in elderly men with type 2 diabetes mellitus (P Conclusion: Atherosclerosis of the lower extremities in elderly men with T2DM is closely related to osteoporosis, and can lead to a decrease in bone mass, and an increase in osteoporosis.

Epidemiology of Lower Extremity Artery Disease in People Living with HIV Followed at the Departmental University Hospital Center Ouémé-Plateau in 2019

Introduction: Lower extremity artery disease (LEAD) is a serious cardiovascular disease. People living with the human immunodeficiency virus (HIV) are at risk. The aim of the study was to determine the prevalence of LEAD and identify the associated factors among people living with HIV who were followed at the departmental university hospital Ouémé-Plateau in Benin. Methods: This was a cross-sectional study. It included all HIV-infected people who were monitored at the department of medicine of the target hospital during the study period and met the inclusion criteria (followed for at least three months, aged at least 25 years, and having given their written consent to participate). Data were collected during an individual interview, followed by the measurement of parameters. The ankle brachial index ≤ 0.9 was used for the diagnosis of LEAD. Associated factors were searched through a multivariable logistic regression. Results: The prevalence of LEAD was 34.2% among 222 respondents having a mean age was 42.9 ± 10.8 years and a female predominance (77.5%). No significant association was found between the presence of LEAD and sociodemographic factors. The presence of LEAD was significantly associated with hypertension and antiretroviral therapy. Hypertensive patients had a higher risk of LEAD compared to non-hypertensive patients (OR = 1.98, 95% CI [1.04-3.83], p = 0.037). Those who were receiving second-line therapy also had a higher risk of LEAD compared to those on first-line therapy (OR = 2.95, 95% CI [1.14-7.60], p = 0.025). Conclusion: This study showed a high prevalence of LEAD especially among hypertensive patients and those who were receiving second-line antiretroviral therapy. LEAD diagnosis and management should be included in the routine care of people living with HIV in Benin.

Repetitive transcranial magnetic stimulation for lower extremity motor function in patients with stroke:a systematic review and network meta-analysis

Transcranial magnetic stimulation,a type of noninvasive brain stimulation,has become an ancillary therapy for motor function rehabilitation.Most previous studies have focused on the effects of repetitive transcranial magnetic stimulation(rTMS)on motor function in stroke patients.There have been relatively few studies on the effects of different modalities of rTMS on lower extremity motor function and corticospinal excitability in patients with stroke.The MEDLINE,Embase,Cochrane Library,ISI Science Citation Index,Physiotherapy Evidence Database,China National Knowledge Infrastructure Library,and ClinicalTrials.gov databases were searched.Parallel or crossover randomized controlled trials that addressed the effectiveness of rTMS in patients with stroke,published from inception to November 28,2019,were included.Standard pairwise meta-analysis was conducted using R version 3.6.1 with the“meta”package.Bayesian network analysis using the Markov chain Monte Carlo algorithm was conducted to investigate the effectiveness of different rTMS protocol interventions.Network meta-analysis results of 18 randomized controlled trials regarding lower extremity motor function recovery revealed that low-frequency rTMS had better efficacy in promoting lower extremity motor function recovery than sham stimulation.Network meta-analysis results of five randomized controlled trials demonstrated that highfrequency rTMS led to higher amplitudes of motor evoked potentials than low-frequency rTMS or sham stimulation.These findings suggest that rTMS can improve motor function in patients with stroke,and that low-frequency rTMS mainly affects motor function,whereas high-frequency rTMS increases the amplitudes of motor evoked potentials.More highquality randomized controlled trials are needed to validate this conclusion.The work was registered in PROSPERO(registration No.CRD42020147055)on April 28,2020.

Clinical effect of ultrasound-guided nerve block and dexmedetomidine anesthesia on lower extremity operative fracture reduction

BACKGROUND Lower extremity fractures are mainly treated by surgical reduction,but this operation is often affected by the patient’s level of agitation and the type of anesthesia used.The main treatment for lower-extremity fractures is operative reduction.However,operations can often be affected by both agitation and the degree of anesthesia.Therefore,it is of great importance to develop an effective anesthesia program to effectively ensure the progress of surgery.AIM To discuss the effect of ultrasound-guided nerve block combined with dexmedetomidine anesthesia in lower extremity fracture surgery.METHODS A total of 120 hospital patients with lower extremity fractures were selected for this retrospective study and divided into an observation group(n=60)and a control group(n=60)according to the anesthesia scheme;the control group received ultrasound-guided nerve block;the observation group was treated with dextromethomidine on the basis of the control group,and the mean arterial pressure,heart rate(HR),and blood oxygen saturation were observed in the two groups.RESULTS The mean arterial pressure of T1,T2 and T3 in the observation group were 94.40±7.10,90.84±7.21 and 91.03±6.84 mmHg,significantly higher than that of the control group(P<0.05).The observation group’s HR at T1 was 76.60±7.52 times/min,significantly lower than that of the control group(P<0.05);The observation group’s HR at T2 and T3 was 75.40±8.03 times/min and 76.64±7.11 times/min,significantly higher than that of the control group(P<0.05).The observation group’s visual analog score at 2 h,6 h and 12 h after operation was 3.55±0.87,2.84±0.65 and 2.05±0.40.the recovery time was 15.51±4.21 min,significantly lower than that of the control group(P<0.05).Six hours post-anesthesia,epinephrine and norepinephrine in the observation group were 81.10±21.19 pg/mL and 510.20±98.27 pg/mL,significantly lower than that of the control group(P<0.05),and the mini-mental state exam score of the observation group was 25.51±1.15,significantly higher than that in the control group(P<0.05).CONCLUSION Ultrasound-guided nerve block combined with dexmedetomidine has a good anesthetic effect in the operation of lower limb fractures and has little effect on the hemodynamics of patients.

Lower extremity amputations and long-term outcomes in diabetic foot ulcers:A systematic review

BACKGROUNDDiabetes mellitus causes a large majority of non-traumatic major and minoramputations globally. Patients with diabetes are clinically complex with amultifactorial association between diabetic foot ulcers (DFU) and subsequentlower extremity amputations (LEA). Few studies show the long-term outcomeswithin the cohort of DFU-associated LEA.AIMTo highlight the long-term outcomes of LEA as a result of DFU.METHODSPubMed/MEDLINE and Google Scholar were searched for key terms, “diabetes”,“foot ulcers”, “amputations” and “outcomes”. Outcomes such as mortality, reamputation,re-ulceration and functional impact were recorded. Peer-reviewedstudies with adult patients who had DFU, subsequent amputation and follow upof at least 1 year were included. Non-English language articles or studiesinvolving children were excluded.RESULTSA total of 22 publications with a total of 2334 patients were selected against theinclusion criteria for review. The weighted mean of re-amputation was 20.14%,29.63% and 45.72% at 1, 3 and 5 years respectively. The weighted mean of mortality at 1, 3 and 5 years were 13.62%, 30.25% and 50.55% respectively withsignificantly higher rates associated with major amputation, re-amputation andischemic cardiomyopathy.CONCLUSIONPrevious LEA, level of the LEA and patient comorbidities were significant riskfactors contributing to re-ulceration, re-amputation, mortality and depreciatedfunctional status.

Two-point compression ultrasonography: Enough to rule out lower extremity deep venous thrombosis?

BACKGROUND: Deep venous thrombosis(DVT) is a major cause of morbidity and is a common presenting complaint to the emergency department(ED). Point-of-care two-point compression ultrasonography has evolved as a quick and effective way of diagnosing DVT. The purpose of this study is to validate the prevalence and distribution of venous thrombi isolated to proximal lower extremity veins, other than common femoral and popliteal veins in patients with DVT.METHODS: This is a single-center retrospective study that looked at patients presenting to the ED of a tertiary care hospital between January 2014 and August 2018. The clinical presentation and laboratory and imaging results were obtained using the hospital's electronic medical record.RESULTS: A total of 2,507 patients underwent a lower extremity duplex ultrasound during the study period. Among them, 379(15%) were included in the study. The percentages of isolated thrombi to the femoral vein and deep femoral vein were 7.92% and 0.53%, respectively. When the patients were stratified into the two groups of isolated DVT and two-point compression DVT, there were no statistically significant differences in the laboratory results between both groups. However, immobilized patients and patients with recent surgeries were more likely to have an isolated DVT.CONCLUSIONS: Thrombi isolated to proximal lower extremity veins other than the common femoral and popliteal veins make up 8.45% of DVTs. Given this significant number of missed DVTs, the authors recommend the addition of the femoral and deep femoral veins to the two-point compression exam.

Effect of combining music media therapy with lower extremity exercise on elderly patients with diabetes mellitus

Objective:To evaluate the compliance with lower extremity exercise and blood circulation in the feet of elderly diabetics following a combination of music media therapy and a lower extremity exercise regimen.Method:The 72 elderly diabetic patient subjects were divided into two groups:control group(n=38)and intervention group(n=34).Both groups were exposed to the same comprehensive therapy to control glucose levels.While the control group was given the lower extremity exercise,the intervention group received the extremity exercise in addition to the music media.Result:After three months of intervention,the adherence to the lower extremity exercise regimen in the intervention group was significantly higher than that of the control group(p<0.05).Additionally,following six months of treatment,both the dorsal artery peak values and ankle-brachial indices(ABIs)showed significant differences between the control and intervention groups(p<0.05).Conclusion:Music media treatment combined with lower extremity exercise can both significantly increase the extent of exercise compliance of elderly patients suffering from diabetes mellitus,as well as improve blood circulation in their feet.

Paper Clinical Value of Color Doppler Ultrasonography in Diagnosis of Lower Extremity Arterial Disease of Diabetes Patients

Objective: To evaluate the diagnostic value of color Doppler ultrasound in the diagnosis of diabetic lower extremity vascular diseases. Methods: 48 patients with diabetic lower extremity vascular disease admitted in our hos-pital from September 2018 to September 2019 were included in the study and divided into the observation group, and another 48 patients with the same period of health examination in our hospital were included in the study and divided into the control group. Both groups used color Doppler ultrasound to detect the blood flow of lower extremity vessels. The incidence of blood flow, vascular diameter and stenosis, occlusion and arteriosclerosis of the lower extremity were observed. Results: The blood flow and vascular di-ameter of the lower extremity in the observation group were significantly lower than those in the control group (p < 0.05). The incidence of vascular stenosis, vascular occlusion, thrombus, intimal thickening and plaque in the observation group was 85.42%, 22.92%, 10.42% and 93.75% respectively, which was significantly higher than that in the control group was 10.42%, 0.00%, 0.00% and 14.58% (p < 0.05). The incidence of lower extremity vascular lesions in the observation group was significantly higher than that in the control group (p < 0.05). Conclusion: Color Doppler ultrasound is of high diagnostic value in the diagnosis of diabetic lower extremity vascular diseases, and can be used to determine the blood flow of the lower extremity and the inner diameter of popliteal artery, thigh artery, dorsalis pedis artery and so on. At the same time, it can also clearly show the specific situation of vascular occlusion, arteriosclerosis and thrombosis, which is of great signif-icance for the prevention and diagnosis of lower extremity vascular lesions, and can provide the basis for the treatment of lower extremity vascular lesions.

Preventing Lower Extremity Deep Vein Thrombosis After Hip Fracture Surgery in Elderly Patients by Acupoint Application Combined with Pneumatic Compression Therapy

Objective:To investigate and analyze the long-term clinical effects of acupoint application combined with pneumatic compression therapy in the prevention of deep venous thrombosis after hip fracture surgery among the elderly.Methods:Sixty elderly patients who had undergone hip fracture surgery from February 2021 to February 2022 were selected as the research subjects.The patients were divided into two groups via drawing lots.Both the groups received nursing care,but the patients in the observation group were treated with TCM acupoint application combined with pneumatic compression therapy,whereas the control group received pneumatic compression therapy.The evaluation indicators included the patients’quality of life and complications.Results:The incidence of lower extremity deep vein thrombosis in the observation group was more than twice(0.3%),whereas the incidence of lower extremity complications in the control group was more than 6 times(20%).There was a significant difference between the two groups(p<0.05).Conclusion:Traditional Chinese medicine acupoint application combined with pneumatic compression therapy is beneficial for the prevention of postoperative lower extremity deep vein thrombosis among elderly patients.In addition,the patients’overall quality-of-life scores in both physiological and psychological aspects improved significantly,which carries significant clinical reference value.

Return to Sports after Lower Extremity Injuries:Assessment of Movement Quality

Numerous high performance athletes experience further damage or recurrent injuries even after successful rehabilitation. This is often caused by an insufficient movement quality, which has been very rarely assessed by test protocols which determine the point of reintegration into high performance sports (Return-to-Play, RTP). In order to assess the movement quality both objective and subjective test protocols exist. Objective methods like 3D-movement analysis are viewed as international gold standard, but are not the most practicable solutions for daily training routine. This study aims at reviewing the available literature on reliability and validity of existing subjective test protocols. Further their use within high-performance sports is evaluated. Up to now subjective methods fail to match sufficient validity. However some practical approaches for assessment of movement quality after injury are known. Based on selected criteria first recommendations for the use of different subjective screening test methods are given. In summary further research focusing on the validity of subjective tests is needed. The subjective testing methods should be used in combination with additional tests (e.g. strength testing) in order to identify other risk factors. Recurrent pre-injury screenings on movement quality should be carried out to enhance injury prevention.

Mechanism of Simiao Yongan decoction in the treatment of arteriosclerosis obliterans of lower extremity through JAK/STAT signaling pathway

Objective:To predict the effective components,potential targets and pathways of Simiao Yong’an Decoction in the treatment of lower extremity arteriosclerosis obliterans(ASO)based on the method of network pharmacology,and to explore the mechanism of Simiao Yong’an Decoction in treating ASO combined with cell experiment.Methods:TCMSP database was used to screen the active components and targets of Simiao Yong’an decoction,and Genecards and OMIM databases were used to obtain ASO related proteins;PPI network of drug disease target proteins was constructed by string platform;go function and KEGG pathway enrichment of Simiao Yong’an Decoction ASO target were analyzed by David database.The drug target pathway with high correlation with ASO was selected.The model of vascular smooth muscle cell injury(VSMCs)induced by ox LDL was used,and Simiao Yong’an decoction containing pharmaceutical Qing was given to verify the therapeutic effect of Simiao Yong’an Decoction on ox LDL induced VSMCs and its regulation on highly correlated target pathway.Results:A total of 126 active components of Simiao Yong'an Decoction were screened,40 targets of Simiao Yong’an Decoction ASO were selected,99 go biological processes and 48 related signal pathways were related to ASO;the experimental results showed that with the passage of time,Simiao Yongan decoction could significantly inhibit the proliferation of VSMCs(P<0.05);compared with the model group,the percentage of BrdU positive cells in each dose group of Simiao Yong’an decoction was significantly higher than that in the model group In addition,Simiao Yong’an decoction could significantly inhibit the proliferation of VSMCs(P<0.05);in addition,Simiao Yongan decoction could inhibit the levels of IL-6 and IL-1β(P<0.05);significantly inhibit the expression of PCNA,JAK2 and STAT3 mRNA(P<0.05);Conclusions:Simiao Yong’an decoction has the effect of"multi-component,multi-target and multi-channel"in the treatment of ASO.It can inhibit the activation of JAK/STAT signaling pathway,play an anti-inflammatory role and inhibit the proliferation of vascular smooth muscle cells.

Lower Extremity Ulcers in Patients with Systemic Sclerosis

Introduction: Cutaneous manifestations of systemic sclerosis (SSc) include skin ulceration;4% - 12% of patients with SSc develop lower extremity ulcers of various etiologies. Limited data, significant morbidity, and substantial cost of wound care led us to undertake this study to describe and identify risk factors. Methods: After Institutional Review Board approval, we identified 30 patients with SSc and lower extremity ulcers over a 10-year period at a single center with an SSc clinic, which were included in a descriptive analysis. Results: Median age of onset of lower extremity ulcers was 59.5 years (range 20 - 84). Ninety percent of patients were female, 60% were Caucasian, 63% had limited SSc, 13% diffuse SSc and 23% an overlap syndrome. Immunomodulators or steroids were prescribed in 53%;hypercoagulable state identified in 16%. Ulcers were attributed to venous stasis (27%), SSc (20%), trauma (20%), arterial disease (17%), and multifactorial/unknown (17%). In patients with ulcers attributed to SSc, age at onset was lower (45.5 vs 59.5 years). Biopsies generally did not contribute to management. Multidisciplinary treatment was routine;20% required amputation, 10% endovascular intervention, 20% frequent surgical debridement, 10% hyperbaric oxygen, 26% local treatment and antibiotics and 13% received immunosuppression for wound treatment. Conclusion: Lower extremity ulcers are a serious clinical problem in patients with SSc. The clinical exam, venous dopplers, ankle-brachial indices and assessment of vascular risk factors helped define causality. In younger patients, ulcers were more frequently attributed to SSc and these patients were more likely to be on immunosuppressants/DMARDS, possibly indicating severe phenotype of SSc.

Discussion on Prevention and Treatment of Lower Extremity Deep Venous Thrombosis in Orthopedic Perioperative Period from Spleen and Stomach Meridians

Deep venous thrombosis of lower extremity is one of the common complications in orthopedic perioperative period.It is caused by many factors,such as peripheral vein dilation,slow blood flow;long-term immobilization,bed rest and so on.On the one hand,it affects the early postoperative functional exercise and functional recovery,on the other hand,it increases the length of hospital stay and economic burden,increases the pain of patients and even endangers their lives.Effective treatment of traditional Chinese medicine combined with western medicine can play a better role in the prevention and treatment of lower extremity deep venous thrombosis.This study expounds the concept of spleen and stomach meridians in the prevention and treatment of lower extremity deep venous thrombosis,and puts forward some opinions on the dialectical treatment and daily conditioning of lower extremity deep venous thrombosis,hoping to provide ideas for the clinical prevention and treatment of lower extremity deep venous thrombosis in traditional Chinese medicine.