In order to profoundly understand the clinical and laboratorial characteristics and inducing factors of hemophagocytic lymphohistiocytosis syndrome (HLH), 28 HLH patients received from 2004 to 2009 years in our hospital were analyzed retrospectively. The results indicated that all of the patients had a history with prolonged fever (more than 1 week), pancytopenia, hepatosplenomegaly, elevated ferritin level, hypofibrinogen, and hemophagocytosis in bone marrow. HLH was the first characteristic sign of malignant lymphoma in 9 patients; 1 patient had a clinical manifestation similar to fulminant hepatic failure; severe psycho-abnormality occurred in 1 HLH patient and pronounced hemophagocytosis were detected in his cerebrospinal fluid; 1 patient was eventually diagnosed as having HLH by the findings in a lymph node biopsy showing obvious hemophagocytosis. Additionally, the analysis of underlying factors in 28 patients with HLH indicated 11 patients with EB virus-associated HLH, 11 with lymphoma-associated HLH, 2 with Leishmania-associated HLH, and 3 with autoimmune disease-associated HLH. It is concluded that HLH disease is characterised with high heterogenicity in both clinical features and inducing factors; in addition, the patients from a pasturing area should be paid attention to parasite infection such as leishmania.
Adolescent ; Adult ; Aged ; Autoimmune Diseases ; complications ; Child ; Child, Preschool ; Female ; Herpesvirus 4, Human ; isolation & purification ; Humans ; Leishmania ; isolation & purification ; Lymphohistiocytosis, Hemophagocytic ; complications ; diagnosis ; parasitology ; virology ; Male ; Middle Aged ; Retrospective Studies ; Young Adult

OBJECTIVETo study the safety, effectiveness and feasibility of suprapubis-assisted umbilical laparoendoscopic mini-dual-site surgery (SAU-LEMDS) in the treatment of varicocele.

METHODSThis study included 80 varicocele patients aged 24 - 44 (mean 28.5 +/- 2.6) years, 25 cases of grade I, 45 cases of grade II and 10 cases of grade III, 58 cases in the left side, 6 in the right and 16 in both sides, and all with asthenospermia. The patients were treated by SAU-LEMDS under subarachnoid anesthesia combined with general anesthesia in a supine position with a head-down-feet-up slope of 15 degrees. Two 5 mm trocars were inserted bilaterally at the umbilical edge, one with a 5 mm 30 degrees laparoscope placed in it, and another into the abdominal cavity below the pubic hairline with a 5 mm laparoendoscopic clipper placed in it. The operation procedure was similar to that of standard laparoscopic ligation of spermatic veins, with reservation of the spermatic artery and double-ligation of spermatic veins. And the procedure was repeated for the contralateral lesion in the bilateral cases. Postoperative follow-up was conducted for the incidences of orchiatrophy and testicular hydrocele and changes of seminal parameters.

RESULTSAll the operations were successful, with the mean operation time of (10 +/- 5.0) min (range 8 to 25 min) for the unilateral cases and (18 +/- 6.5) min (range 15 to 30 min) for the bilateral cases, the mean blood loss of (1.5 +/- 0.5) ml (range 1 to 2 ml), and the mean postoperative hospital stay of (2 +/- 0.5) d (range 1.5 to 3 d). The patients were followed up for 6 -24 (12 +/- 2.5) months, which showed significant improvement in sperm motility as compared with the baseline ([28.53 +/- 5.21] vs [19.62 +/- 3.56]%, P < 0.05), with 28 cases (35.0%) restored to normal. Recurrence was found in 4 cases (5.0%). Testicular hydrocele occurred in 7 cases (8.75%), but orchiatrophy in none. The scars in the umbilicus and suprapubis were invisible because of the wrinkles and pubic hair.

CONCLUSIONSAU-LEMDS is safe, effective and feasible for the treatment of varicocele. It is superior to umbilical laparoendoscopic single-site surgery (U-LESS) for its less invasiveness, simpler operation, and better cosmetic appearance.

Adult ; Asthenozoospermia ; Humans ; Laparoscopy ; adverse effects ; methods ; Length of Stay ; Ligation ; methods ; Male ; Operative Time ; Postoperative Period ; Recurrence ; Spermatic Cord ; blood supply ; Testicular Hydrocele ; etiology ; Treatment Outcome ; Umbilicus ; Varicocele ; surgery ; Veins

BACKGROUNDStatins and ezetimibe have been reported to change the balance of cholesterol metabolism, but few studies have been performed on Chinese patients. The aim of this study was to evaluate changes in cholesterol metabolism markers in patients with coronary heart disease.

METHODSForty-five patients with coronary heart disease were treated with 20 mg/d of simvastatin for four weeks. Subjects were then divided into two different therapy groups according to whether they reached the target values for total cholesterol and low density lipoprotein cholesterol level. Patients who reached the target values remained on simvastatin and those who did not reach the target values took a combination of simvastatin plus 10 mg/d ezetimibe until the 12th week. The concentrations of cholesterol synthesis markers (lathosterol and desmosterol) and absorption markers (campesterol and sitosterol) were measured on the 1st, 4th, and 12th week of the study by gas chromatography.

RESULTSAfter treatment with simvastatin for four weeks, the levels of total cholesterol and low density lipoprotein cholesterol decreased significantly compared to levels measured during the 1st week (P < 0.05). On the 12th week the levels of total cholesterol and low density lipoprotein cholesterol had decreased significantly (P < 0.001) compared to levels during the 4th week. By the 12th week the levels of campesterol and sitosterol in the combination group had decreased significantly (P < 0.05) compared with levels measured during the 4th week.

CONCLUSIONSCoronary heart disease patients with high cholesterol synthesis at baseline might gain a greater benefit from simvastatin treatment. Combination therapy with simvastatin plus ezetimibe in patients with low cholesterol synthesis at baseline might increase the success rate of lipid-lowering through decreasing the absorption of cholesterol.

Adult ; Aged ; Azetidines ; administration & dosage ; Cholesterol ; metabolism ; Cholesterol, LDL ; blood ; Coronary Disease ; drug therapy ; metabolism ; Drug Therapy, Combination ; Ezetimibe ; Female ; Humans ; Male ; Middle Aged ; Simvastatin ; administration & dosage

OBJECTIVETo explore the change in the distensibility of large arteries and its influencing factors in elderly patients with essential hypertension.

METHODSAutomatic measuring system for pulse wave velocity (PWV) was applied to examine carotid-femoral PWV as an index reflecting distensibility of large arteries. 118 hypertensive patients aged 64 - 83 (mean age 67.12 +/- 10.26) years were included in the study. Of them, 87 were males and 31 were females.

RESULTSPWV of 118 hypertensive patients increased with increasing age (P < 0.001). Multivariate regressive analysis demonstrated that age and systolic blood pressure had the close relationship with PWV (P < 0.001).

CONCLUSIONHypertension of the elderly could cause reduction of distensibility of large arteries. Age and systolic blood pressure had the close relationship with distensibility of large arteries in elderly patients with essential hypertension.

Age Factors ; Aged ; Aged, 80 and over ; Blood Flow Velocity ; Carotid Arteries ; physiopathology ; Elasticity ; Female ; Femoral Artery ; physiopathology ; Hemodynamics ; Humans ; Hypertension ; physiopathology ; Male ; Middle Aged ; Pulse

Objective ATRA can restrain proliferation and promote differentiation in various tumor cells. The aim of the study is to investigate the differentiation characteristics of K562 induced by ATRA. Methods Morphology (Benzidine staining, Wright's staining, NSE staining and NBT recovery test) and flow cytometry were used to observe the differentiation characteristics of K562 after co-incubation with 1 μmol/L and 2.5 μmol/L ATRA for 1 d, 4 ds, and 5 ds. Results Co-incubated for 4 ds, 61.5% K562 cells in the 1 μmol/L ATRA group and 39% K562 cells in the 2.5 μmol/L ATRA group showed some evidence of myeloid maturation, but no evidence of erythroid or monocytoid maturation. Co-incubated for 5 ds, the percentage of differentiated K562 cells was much higher than that in the control group. One day after induction by 1 μmol/L ATRA or 2.5 μmol/L ATRA, the expression of CD13 was 8.0% and 6.7%, respectively, which was higher than that in the control group (2.1%). Five days after induction by 1 μmol/L ATRA or 2.5 μmol/L ATRA, the expression of CD13 increased to 28.1% and 37.8%, respectively, while the expression of CD71 decreased to 1.2% and 0.9% respectively. The differences between the ATRA groups and the control group were significant (P<0.05). CD71 decreased from 9.7% and 10.8% in the 1 μmol/L and 2.5 μmol/L ATRA groups on day 1 to 1.2% and 0.9% on day 5, while the CD13 expression level increased from 8.0% and 6.7% to 28.1% and 37.8%, respectively. Conclusions ATRA can induce K562 to differentiate into myeloid linage.

Objective:To explore the application of 3D visualisation technology combined with perforator flap transfer in reconstruction of soft tissue defects in traumatic hand and foot injury and explore the clinical outcomes.Methods:Between January 2021 and February 2023, a retrospective analysis was conducted in the Department of Emergency of the Affiliated Hospital of Jiangsu University and the Department of Sports Medical of Wuxi No. 9 People's Hospital, on the data of 12 patients (13 flaps) who received surgery of 3D visualisation technology combined with perforator flap transfer for soft tissue defects left by traumatic hand and foot injuries. The patients were 7 males and 5 females aged 45 [36.5, 55.8] years old. Nine patients had the defects in hand and 3 in foot, with 3 in the left and 9 in the right. The sizes of defects ranged from 8.0 cm×6.0 cm to 18.0 cm×17.0 cm. The time from injury to surgery was 13.5 [8.3, 20.8] days. Preoperative CTA scans of donor and recipient sites were performed, and the imaging data were processed for 3D image reconstruction and visualisation. A total of 13 flaps were designed and harvested, including 10 free anterolateral thigh perforator flaps (ALTPFs) and 3 pedicled perforator flaps of fibular artery containing fibular nerve nutrient vessel chains. The flap sizes ranged from 9.0 cm×6.0 cm to 20.0 cm×15.0 cm. Five of the donor sites were directly closed by suture and 8 by skin grafting. Monthly outpatient follow-ups were conducted for the first 3 months after surgery, and then the follow-up reviews were conducted through visits of outpatient clinic or reviewed via WeChat interviews. Information about the outcomes of the transferred flaps, complications and function recovery were recorded on all patients.Results:All 13 flaps were successfully harvested and transferred with the assistance of 3D visualisation technology. Preoperative location of perforator vessels was accurate and flap design was reasonable. The 3D visualisation provided an effective guidance for surgical manipulation. Twelve flaps survived completely after surgery. One flap that had partial necrosis healed after skin grafting. All patients were included in more than 6 months of postoperative follow-up, with a mean follow-up duration of 8.1 months±1.7 months. All flaps had good colour and texture. Four flaps that had swollen appearance received secondary thinning surgery with satisfactory outcomes. The recovery of 9 patients with hand injury was evaluated according to the Blood Circulation Elauation of Severed Finger Replantation Evaluation Standard of Upper Limb Functional of Hand Surgery of Chinese Medical Association. At the final follow-up, the blood supply of flaps was excellent in 11 flaps and good in 2 flaps. Hand function was excellent in 2 hands, good in 4 hands and poor in 3 hands. Scores of American Orthopedic Foot and Ankle Societ(AOFAS) ankle-hindfoot was used for foot function evaluation and all 3 patients were in excellent. Of the postoperative complications, due to a haematoma beneath the flap, a local infection and a delayed fracture healing were occurred in 3 patients separately.Conclusion:The 3D visualisation technology assisted perforator flap transfer can achieve high-quality reconstruction of defects in hand and foot through precise preoperative flap design and simulated surgical incision, therefore it provides a better treatment outcomes for patients.

This study was purposed to investigate the effect of xbp-1 gene silencing on bortezomib-induced apoptosis in multiple myeloma cell line NCI-H929 (H929). After xbp-1 gene expression was interfered by small hairpin RNA, the cell apoptosis was assayed by flow cytometry with Annexin V-FITC/PI staining, and the expression level of XBP-1 protein was detected by Western blot. The results showed that XBP-1 protein level of H929 cells was inhibited effectively by the PLL3.7 lentiviral vector mediated expression xbp-1 shRNA. The apoptosis rate was significantly higher in xbp-1 shRNA-expressing cells than in untreated control group [(10.13±0.61)% vs (2.5±0.2)%, p<0.05]. After treatment with bortezomib, the apoptosis rate of XBP-1 protein functionally deficient H929 cells was significantly higher than those in vector control group [(45.07±1)% vs (19.53±0.8)%, p<0.05]. It is concluded that xbp-1 gene silencing can significantly enhance the pro-apoptotic activity of bortezomib in multiple myeloma cells.
Apoptosis ; drug effects ; Boronic Acids ; pharmacology ; Bortezomib ; Cell Line, Tumor ; DNA-Binding Proteins ; genetics ; Gene Silencing ; Humans ; Multiple Myeloma ; genetics ; Pyrazines ; pharmacology ; RNA, Small Interfering ; genetics ; Regulatory Factor X Transcription Factors ; Transcription Factors ; genetics ; X-Box Binding Protein 1

Objective To evaluate the association between diabetic retinopathy (DR) and mean ocular perfusion pressure (MOPP) in patients with type 2 diabetes mellitus (T2DM).Methods Patients from the Fushun Diabetic Retinopathy Cohort Study (FS-DIRECT), a communitybased prospective cohort study conducted in northeast China, were included in this study. The presence and severity of DR were determined by grading fundus photographs according to the Early Treatment Diabetic Retinopathy Study (ETDRS) retinopathy scale. Systolic and diastolic blood pressure (SBP and DBP) were recorded using an electronic sphygmomanometer. Intraocular pressure (IOP) was measured using an iCare rebound tonometer. MOPP was calculated using the formula MOPP = 2/3 [DBP + 1/3(SBP ? DBP)] ? IOP.Results In total, 1,857 patients who had gradable fundus photography and MOPP data were enrolled in this study. Male patients had a higher MOPP than female patients (52.25 ± 8.75 vs. 50.96 ± 8.74mmHg, P = 0.002). Overall, both male and female patients with any type of DR, non-proliferative DR (NPDR), or non-sight-threatening DR (non-STDR) had significantly higher MOPP relative to patients without DR. Increased MOPP (per 1 mmHg) was in turn associated with the presence of any type of DR [odds ratio (OR) = 1.03, 95％ confidence interval (CI) : 1.02–1.04], NPDR (OR = 1.0395％ CI: 1.02–1.04),and non-STDR (OR = 1.03, 95％ CI: 1.01–1.04) after adjusting for confounders. Increased MOPP (per 1 mmHg) was also associated with an increased likelihood of macular edema (OR = 1.02, 95％ CI:1.01–1.04).Conclusions The results suggest that increased MOPP was associated with DR and macular edema in northeastern Chinese patients with T2DM.

OBJECTIVETo explore the effect of T(3) on the expression of transferrin receptor (TfR) and ferritin (Fn) in K562 cells and its possible mechanism.

METHODSFlow cytometry was used for the detection of TfR expression, radioimmunoassay for Fn expression, RNA/protein band shift assay for the binding activity of iron regulatory protein (IRP) and iron responsive elements (IRE), and RT-PCR for TfR and Fn mRNA levels.

RESULTSDifferent concentration of T(3) significantly increased Fn expression of K562 cells, especially at 100 nmol/L and 200 nmol/L (p < 0.05). However, T(3) had no effect on TfR expression. T(3) decreased the binding activity between IRP and IRE, particularly at concentration of 50 nmol/L. Different concentration of T(3) increased Fn-H mRNA level at different time point while it had no effect on TfR mRNA level.

CONCLUSIONT(3) increased Fn expression of K562 cells through the possible mechanisms of either the post-transcriptional regulation or transcriptional modulation.

Ferritins ; biosynthesis ; drug effects ; genetics ; Flow Cytometry ; Gene Expression Regulation, Leukemic ; drug effects ; Humans ; K562 Cells ; RNA, Messenger ; genetics ; Radioimmunoassay ; Receptors, Transferrin ; biosynthesis ; drug effects ; genetics ; Reverse Transcriptase Polymerase Chain Reaction ; Triiodothyronine ; pharmacology

OBJECTIVETo understand the aortic pulse wave velocity (PWV) in mid-aged and elderly populations and to study the correlation between gender and PWV and the tendency of PWV on different age groups.

METHODSAccording to the clinical trial guideline, we selected 545 healthy subjects (age, 31-85 years, 395 men and 150 women), and measured carotid-femoral PWV, using Complior.

RESULTSThe average value of PWV in Chinese healthy subjects was 11.62 +/- 2.97 m/s. There was no significant difference in the PWV values between males and females who were older than 40 years, but the values of PWV were lower in females than in males in the 30-39 year-old group. PWV was positively correlated with age. In the present study, the reference values of PWV were established in the different age groups, based on the regression equations between PWV and age.

CONCLUSIONAortic pulse wave velocity seemed to be influenced by age but hardly influenced by gender in healthy subjects, so that the reference value of PWV should be established according to the different age groups. When aorta got stiffer, the value PWV got larger accordingly when age was increasing.

Adult ; Age Factors ; Aged ; Aged, 80 and over ; Aorta ; physiology ; Female ; Humans ; Male ; Middle Aged ; Pulsatile Flow ; Reference Values ; Sex Factors