Objective To investigate the relationship between C-peptide and artherosclerosis in lower ex-tremity in patients with type 2 diabetes. Methods Two hundred and fourteen type 2 diabetic patients were included in this retrospective study. They were divided into two groups:type 2 diabetes with artherosclerosis in lower extremi-ty in 123 cases and type 2 diabetes without artherosclerosis in lower extremity in 91 cases. Their medical history and the laboratory data were collected such as fasting serum C-peptide levels and postprandial serum C-peptide levels of 1 hour, 2 hours and 3 hours, glycated hemoglobin (HbA1c) and so on. Results Compared with artherosclerosis group in lower extremity, the age, duration of diabetes, total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), glycated hemoglobin and smoking rate were significantly higher in type 2 diabetes without artherosclero-sis in lower extremity (P < 0.05). However, the high density lipoprotein cholesterol (HDL-C) was much lower in the last group (P<0.05). There were no significant differences in the other indicators between the two groups (P>0.05). Logistic regression analysis showed that fasting and postprandial (1 hour, 2 hours and 3 hours)serum C-pep-tide levels were all negatively related to artherosclerosis in lower extremity (OR 0.524,P = 0; OR 0.440, P = 0;OR 0.688, P=0;OR 0.795, P=0). Conclusions Serum C-peptide level may be an independent associated fac-tor with artherosclerosis in lower extremity in type 2 diabetes.

Objective To identify mutations in the OSMR gene in a pedigree with familial primary cutaneous amyloidosis (FPCA).Methods Clinical data were collected from a pedigree with FPCA.Peripheral blood samples were obtained from the proband,his 19 relatives,and 50 unrelated healthy human controls.Genomic DNA was extracted from these blood samples,and subjected to PCR for the amplification of 18 encoding exons and their flanking sequences of the OSMR gene followed by DNA sequencing.Results A heterozygous missense mutation c.2081C ＞ T,which leads to the substitution of proline by threonine at position 694,was detected in the OSMR gene of the proband and his affected relatives,but not in unaffected relatives or healthy controls.Conclusion The heterozygous mutation p.P694L in the OSMR gene may cause the clinical phenotype of FPCA in this family.

Objective To study the effects of different hemodialysis modes on growth factor-15 (GDF-15) and left ventricular function in uremic patients undergoing maintenance hemodialysis (MHD). Methods One hundred and twenty uremic patients with chronic renal failure whose MHD > 3 months admitted to Guiyang Second People's Hospital from June 2017 to June 2018 were enrolled, and they were divided into a hemodialysis (HD)+ hemofiltration (HDF)+hemoperfusion (HP) group (HD 8 times per month, HDF 4 times per month, HP 1 time per month), a HD+HDF group (HD 8 times per month, HDF 1 time per month) and a HD group (HD 8 times a month) according to different dialysis modes, each group 40 cases. The patients' venous blood was collected before treatment and 6 months and 1 year after treatment, serum was separated, and the GDF-15 levels in the three groups were detected; the left ventricular end-diastolic dimension (LVDD), left ventricular end-systolic dimension (LVDS), left ventricular end-diastolic volume (LVVD), left ventricular end-systolic volume (LVVS), left ventricular posterior wall thickness (LVPWT), ventricular septal thickness (LVST), maximum blood flow ratio (E/A) of early to late diastole and left ventricular ejection fraction (LVEF) in three groups were detected by echocardiography. Results After treatment, the GDF-15 levels and LVDD, LVDS, LVVD, LVVS, LVPWT, LVST and E/A in the three groups were significantly lower than those before treatment, while LVEF was significantly higher than that before treatment (all P < 0.05); the changes after treatment in the HD+HDF+HP group were more significant than those in the HD+HDF group and HD group [GDF-15 (ng): 853.78±78.80 vs. 921.73±72.54, 971.07±72.05, LVDD (mm): 48.25±1.25 vs. 50.67±1.26, 51.69±1.33, LVDS (mm): 35.21±1.01 vs. 37.84±0.90, 38.91±0.83, LVVD (mL): 101.44±4.40 vs. 109.27±6.47, 115.11±5.46, LVVS (mL): 35.75±1.52 vs. 37.75±1.70, 39.48±1.48, LVPWT (mm): 8.26±0.77 vs. 10.24±0.98, 11.22±0.91, LVST (mm): 9.07±0.48 vs. 10.47±0.61, 11.60±0.58, E/A: 1.03±0.05 vs. 1.07±0.06, 1.15±0.08, LVEF: 0.64±0.03 vs. 0.59±0.03, 0.51±0.04, all P <0.05]. Conclusion The combined hemo- dialysis with different hemodialysis modes can effectively reduce the level of GDF-15 in uremic patients with chronic renal failure and MHD and improve their left ventricular function, thus the incidence of cardiovascular events and mortality in such patients can be decreased.

Objective To explore the diagnosis and treatment of non-tuberculosis mycobacteria (NTM) infection after cosmetic injection via scientific debridement surgery combined with regular application of anti-NTM drugs.Methods 14 patients who were infected with NTM after cosmetic injection and were not cured over a long period of time in other hospitals from 2012 to 2016.The patients were treated with VSD thorough surgical debridement,the bacterial type of NTM was identified by bacterial culture and PCR identification and anti-NTM drugs were systematically used according to the results of drug sensitivity.Results Fourteen patients who were treated with scientific debridement surgeries combined with regular anti-NTM drug treatment in our hospital for 2-4 months were discharged after their skin lesions were cleared and healed and they were continually treated with antiNTM drugs for 12 months.Fourteen patients were completely cured by using the above treatments without severe side effects,such as liver and kidney dysfunction,nervous system disorders and so on.Only colpitis mycotica occurred in 3 patients.In addition,one patient presented the decrease of leukopenia after using anti-NTM drugs for 2 months and continued to complete the treatment after we adjusted the treatment plan to returning the level of leukopenia to the normal.These 14 patients were followed up for 1-5 years with no recurrence of the lesion.The facial appearance of 12 patients were almost normal with slight scars.The facial surgery area of 2 patients were uneven and nearly recovered to normal facial appearance by tissue transplantation and photoelectric therapy.Conclusions For the NTM patients caused by invasive procedures such as injection,the comprehensive treatment program,which combined scientific debridement surgery and systematically targeted drug treatment,not only can effectively cure NTM infection,but also minimize secondary injury and restore the patients' appearance,which is worthy of clinical application.

Objective:To analyze the epidemiological characteristics of vascular complications induced by hyaluronic acid facial injection.Methods:Patients with vascular complication induced by facial hyaluronic acid facial injection were collected in the Fourth Medical Center of the General Hospital of the Chinese People's Liberation Army from January 1, 2016 to October 1, 2021, including 5 males and 37 females. The age ranged from 16 to 70 (34±10) years. The clinical data, injection site, clinical symptoms and previous facial surgery history of the patients were analyzed and investigated.Results:Vascular complications occurred in 12 cases (28.6%). Nasolabial fold in 8 (19.0%) cases; Glabella in 6 (14.3%) cases; frontal part in 6 (14.3%) cases. There were 27 patients (64.3%) with a history of facial surgery. Furthermore, history of facial surgery had no effect on the clinical manifestations of vascular complications ( P>0.05). Among the 18 patients with visual impairment, 12 patients reported that the symptoms of ptosis, bulbar conjunctival congestion, and eye movement dysfunction had diminished after thrombolytic treatment, while 4 patients showed recovery to some extent in visual acuity. Likewise, 24 patients with blood circulation disorders were healed after treatment, with residual pigmentation and a slight scar left. Conclusions:Women aged 30 to 39 years old are the main target population of cosmetic surgery, as well as the most common population of vascular complications. Particular care should be taken in the nose, nasolabial fold, glabella and forehead areas of the operation. Patients with previous surgical history should be adequately informed before surgery, and postoperative observation time should be appropriately prolonged.